Saturday, November 16
Tiny Earth Light Years Away
The nearest single star to the Solar System has just yielded up a rare and wonderful treasure.
Around a red dwarf known as Barnard's star, which lies just 5.96 light-years away, astronomers have found evidence of an exoplanet.
And not just any exoplanet. This fascinating world, known as Barnard b, is tiny, clocking in with a minimum mass of 37 percent of the mass of Earth. That's a little shy of half a Venus, and about 3.5 Marses.
The reason it's so marvelous is that tiny exoplanets are really, really hard to find. Although Barnard b is not habitable to life as we know it, its discovery is leading us closer to the identification of Earth-sized worlds that may be scattered elsewhere throughout the galaxy. READ MORE...
Tuesday, January 9
Cosmological Distance Measurements
Measurements of the distance to extragalactic sources allow us to infer the major energy constituents of our Universe.
Friday, October 13
New Section of Universe Discovered
Astronomers may have detected a dozen large objects lurking beyond the Kuiper Belt at the edge of our solar system, suggesting there could be another equally massive, "second Kuiper Belt" hiding beyond the orbit of Pluto.
Researchers may have detected a dozen new, large objects beyond the Kuiper Belt, which suggests that there is lots more stuff in the solar system than we realized. It could even hint that there is a "second Kuiper Belt" further out toward the edge of our stellar neighborhood, Science.org reported.
The sun's influence reaches much further out into space than the eight planets that orbit around it. Beyond Neptune, the solar system stretches out to around 100 astronomical units (AU), which is 100 times the distance between Earth and the sun. For context, the most distant planet from the sun, Neptune, is roughly 30 AU from our home star.
Beyond the edge of the solar system, or heliopause, lies the Oort Cloud — a reservoir of comets and asteroids that are loosely contained by the sun's gravity — that stretches to at least 1,000 AU from the sun, and likely even further.
But a majority of the largest known asteroids, comets and other large objects that lie beyond Neptune's orbit are contained within the Kuiper Belt, which stretches between 30 and 50 AU from the sun.
Friday, June 23
Earth's Water Came From Space
Earth may have formed much more rapidly than previously believed after born as tiny millimeter-sized pebbles that accumulated over a period of just a few million years.
The new theory also implies that rather than water being delivered to Earth by icy comets, this vital ingredient for life is present on our planet due to our young planet thirstily sucking up water from its space environment.
The new theory put forward by the team suggests that around 4.5 billion years ago when the sun was an infant star surrounded by a disk of gas and dust, known as a proto-planetary disk, tiny particles of dust would be quickly sucked up by forming planets once they reached a certain size.
Sunday, October 30
Alien Spacecrafts in our Solar System
This might be a little out there.
Alien-hunting Harvard astronomer Avi Loeb is back again, armed with new, not-yet-peer-reviewed research. This time, Loeb ups the ante by claiming it's possible that there's — get this — four quintillion alien spacecraft lurking in our solar system. That'd be, uh, a lot of flying saucers.
The study, spotted by the Daily Beast, is a follow up on the first discovery of an interstellar object to visit our solar system, dubbed 'Oumuamua, back in 2017. By all accounts, 'Oumuamua was a very weird object, the nature of which scientists are still hotly debating. Speculated to be cigar-shaped, it sparked tons of debate on whether it was an extraterrestrial visitor.
Loeb isn't outright saying 'Oumuamua was aliens per se, but he is saying we should be open to that possibility. In light of that outlook, he's basically asking what "respectable" scientists would never deign to: how many possible 'Oumuamuas could there be in our solar system that go unnoticed? READ MORE...
Wednesday, September 28
Super Earths Are Common
Astronomers now routinely discover planets orbiting stars outside of the solar system – they’re called exoplanets. But in summer 2022, teams working on NASA’s Transiting Exoplanet Survey Satellite found a few particularly interesting planets orbiting in the habitable zones of their parent stars.
One planet is 30% larger than Earth and orbits its star in less than three days. The other is 70% larger than the Earth and might host a deep ocean. These two exoplanets are super-Earths – more massive than the Earth but smaller than ice giants like Uranus and Neptune.
I’m a professor of astronomy who studies galactic cores, distant galaxies, astrobiology and exoplanets. I closely follow the search for planets that might host life.
Earth is still the only place in the universe scientists know to be home to life. It would seem logical to focus the search for life on Earth clones – planets with properties close to Earth’s. But research has shown that the best chance astronomers have of finding life on another planet is likely to be on a super-Earth similar to the ones found recently. READ MORE...
Monday, September 26
End of Our Solar System
Our Solar System is on its way out. Slowly.
Over the next several billion years, a series of unfortunate events will take place, spanning from the not-so-great to the truly tragic. Afterward, our Solar System will be gone: all of the planets will be lost and the Sun will be a solitary white dwarf. (Pause to wipe away tears).
I will guide us through our Solar System’s future, one step at a time. Since Earth is our home base, I’ll include a key event affecting life on Earth.
- Earth’s oceans will boil off.
- The rocky planets’ orbits may go unstable, leading to a potential giant collision between planets.
- The Sun will become a red giant and swallow the rocky planets.
- A passing star will trigger a dynamical instability among the remaining planets.
- A passing star will strip away the final planet.
Let’s get to it.
1. The end of liquid water (and life) on Earth
The Sun is ever-so-slowly heating up. Today, it’s about 30% brighter than right after it formed. As the Sun converts hydrogen to helium in its core, the mean molecular weight increases, thus increasing the core’s temperature and thus the rate of the fusion reaction (called the proton-proton chain). This slowly increases the Sun’s energy output. READ MORE...
Friday, September 23
A Change in Jupiter's Orbit
A shift in Jupiter's orbit could make Earth's surface even more hospitable to life than it already is, new research suggests.
University of California-Riverside (UCR) scientists simulated alternative arrangements of our solar system, finding that when Jupiter's orbit was more flattened — or 'eccentric' — it would cause major changes in our planet's orbit too.
And this change caused by the orbit of Jupiter — the solar system's most massive planet by far — could impact Earth's ability to support life for the better. READ MORE...
Sunday, September 11
Obiter Hit By A Coronal Mass Ejection
The sun-exploring Solar Orbiter spacecraft came face to face with a massive eruption of plasma from the sun, just ahead of a pivotal flyby of Venus.
An enormous coronal mass ejection (CME), a burst of charged particles from the sun's upper atmosphere, the corona, shot out from the sun on Aug. 30 in the direction of Venus. Shortly after that, the bubble of solar material reached Solar Orbiter, which was just preparing for its latest orbital flyby of the second planet of the solar system.
Fortunately, the ESA-NASA observatory is designed to measure the very kind of violent outburst it just encountered and thus could withstand the solar assault with ease.
The spacecraft carries 10 science instruments to observe the sun's surface and collect data on CMEs, the solar wind and the sun’s magnetic field. Some of these instruments were turned off during the close approach to Venus, due to the potential risk from sunlight bouncing off the highly reflective Venusian atmosphere, ESA said in a statement. READ MORE...
Saturday, September 3
Talking to Voyager Again
NASA’S VOYAGER 1 is on a fraught and unknowable journey into deep space. Some 14.6 billion miles from Earth, it and its sister craft, Voyager 2, are the furthest human-made objects from our planet, having made it beyond the edges of the Solar System and out into the interstellar medium.
But that’s not how NASA works. Instead, they started working on a remote diagnosis and fix for the record-breaking spacecraft. Now, some four months later, they are triumphant.
Thursday, July 21
A Rogue Star & Our Solar System
In 1687, Sir Isaac Newton published his magnum opus, Philosophiæ Naturalis Principia Mathematica, which effectively synthesized his theories on motion, velocity, and universal gravitation.
In terms of the latter, Newton offered a means for calculating the force of gravity and predicting the orbits of the planets. Since then, astronomers have discovered that the Solar System is merely one small point of light that orbits the center of the Milky Way Galaxy. On occasion, other stars will pass close to the Solar System, which can cause a dramatic shakeup that can kick objects out of their orbits
These “stellar flybys” are common and play an important role in the long-term evolution of planetary systems. As a result, the long-term stability of the Solar System has been the subject of scientific investigation for centuries.
The research was led by Garett Brown, a graduate student of computational physics from the Department of Physical and Environmental Sciences (PES) at the University of Toronto at Scarborough. He was joined by Hanno Rein, an associate professor of astrophysics (and Brown’s mentor) also from the PES at UT Scarborough.
Tuesday, May 24
Fusion Rocket Breakthrough
Speaking exclusively to Science Digest, the former Made In Chelsea star, 35, said: "In the Milky Way there are believed to be billions of habitable planets orbiting G-type stars like ours.
"That doesn't mean that they've got people on them, but it means that they could support life.
"We're living in a world now where maybe the entrepreneurs of the future can own their own planets. "To do that, they will need very, very fast rockets.
That may sound like a ludicrous thing to say, but we are almost there - Mars has got quite a keen interest.
"I think part of being human is to leave our planet – we've always followed the stars since prehistoric times and now we need to emulate that."
To make this possible, Mr Dinan wants to replicate the fusion process used by stars like our Sun. Tipped as the "holy grail" energy source, nuclear fusion has been studied for over a century.
Unlike nuclear fission – the powerful reaction that led to the creation of nuclear weapons – fusion takes two light atomic nuclei to combine to form a single heavier one while releasing massive amounts of energy. READ MORE...
Wednesday, March 2
Controlling the Moon
Photo Illustration by Elizabeth Brockway and Luis G. Rendon/The Daily Beast/Getty
In 1961, U.S. President John F. Kennedy declared that his nation would be the first to land a man on the moon. That ambitious goal would later be fulfilled as two NASA astronauts took wobbly steps across the lunar surface on July 20, 1969, much to the dismay of Russia’s own space program leaders.
More than 60 years later, a new space race to the moon has begun, albeit with much higher stakes and brand new players ready to make the 238,855-mile journey. This time, the race to the moon is about much more than just planting a flag on its dusty surface. Getting to the moon first could also mean calling dibs on its limited resources, and controlling a permanent gateway to take humans to Mars—and beyond.
Whether it’s NASA, China, Russia, or a consortium of private companies that end up dominating the moon, laying claim to the lunar surface isn’t really about the moon anyway—it’s about who gets easier access to the rest of the solar system.
James Rice, a senior scientist at the School of Earth and Space Exploration at Arizona State University, remembers growing up with the Apollo program and getting bitten by the space bug as he watched the 1969 moon landing unfold on television.
“As a kid, I saw that happening and I wanted to be a part of it,” Rice told The Daily Beast. “That’s basically why I’m in this career today.”
As Rice reflected on the current space race, he recognized some key differences. “Things have really changed dramatically in terms of the technology and the players that are out there,” he said. “This is not the moon we thought of during the Apollo days.” Scientists have learned so much more about the moon through more detailed analysis of lunar samples, as well as several missions that have probed exactly what might be sitting on the moon’s surface and remain hidden deep underground. READ MORE...
Monday, October 25
Magnetic Ropes Surround Us
Our planet, along with the rest of the solar system and some nearby stars, may be trapped inside a giant magnetic tunnel — and astronomers don't know why.
A tube of vast magnetized tendrils, 1,000 light-years long and invisible to the naked eye, may encircle the solar system, astronomers propose in a new paper.
"If we were to look up in the sky, we would see this tunnel-like structure in just about every direction we looked — that is, if we had eyes that could see radio light," West said in a statement.
The curving tendrils — which are made of both charged particles and a magnetic field, and resemble long, thin ropes — project outward from the North Polar Spur and the Fan Region.
Sunday, October 10
Well...
- Creation
- God/gods
- Heaven/Hell
- Life After Death
- A Great Flood
- Virgin Birth
- Death of Savior
- Teaching Mankind
- Another Planet?
- Another Solar System?
- Another Galaxy?
- Another Dimension?
- Another Universe?
Monday, September 27
Earth's Twin
But that doesn’t mean the other planets were destroyed. Earth may have a long-lost sibling somewhere in interstellar space. At least one rocky planet, around the same mass as Mars, may have been booted out of the early Solar System.
These are just some of the findings compiled in a recent review paper in the Annual Review of Astronomy and Astrophysics, taking a look at the mysterious third zone of our Solar System, those points past Neptune and out into interstellar space.
Today, the planets in our Solar System are neatly sorted by size and composition:
- The four rocky inner planets orbit in the space between the Sun and the Asteroid Belt
- The outer Solar System is the realm of giants — Jupiter, Saturn, Uranus, and Neptune — which gathered enormous masses of gas and ice around their rocky cores
- Beyond Uranus and Neptune lies the realm of the dwarf planets, like Pluto, Eris, Sedna, and their even smaller neighbors, whether dwarf planet or comet
“It seems unlikely that Nature created four giant planet cores, but then nothing else larger than dwarf planets in the outer Solar System,” planetary scientists Brett Gladman of the University of British Columbia and Kathryn Volk of the University of Arizona write in the review. READ MORE
Saturday, May 22
Searching For Alien Life
From the movements of a number of nearby stars we have now detected unseen companion bodies in orbit around them that are about as massive as large planets. From our knowledge of the processes by which life arose here on the earth we know that similar processes must be fairly common throughout the universe.
In our present ignorance of how common extraterrestrial life may actually be, any attempt to estimate the number of technical civilizations in our galaxy is necessarily unreliable. We do, however, have some relevant facts. There is reason to believe that solar systems are formed fairly easily and that they are abundant in the vicinity of the sun. In our own solar system, for example, there are three miniature "solar systems": the satellite systems of the planets Jupiter (with 13 moons), Saturn (with 10) and Uranus (with five).
The only technique we have at present for detecting the planetary systems of nearby stars is the study of the gravitational perturbations such planets induce in the motion of their parent star. Imagine a nearby star that over a period of decades moves measurably with respect to the background of more distant stars. Suppose it has a nonluminous companion that circles it in an orbit whose plane does not coincide with our line of sight to the star.
Friday, April 9
Russian Cosmism
Cosmism entailed a broad theory of natural philosophy, combining elements of religion and ethics with a history and philosophy of the origin, evolution, and future existence of the cosmos and humankind. It combined elements from both Eastern and Western philosophic traditions as well as from the Russian Orthodox Church.
Cosmism was one of the influences on Proletkult, and after the October Revolution, the term came to be applied to "...the poetry of such writers as Mikhail Gerasimov and Vladimir Kirillov...: emotional paeans to physical labor, machines, and the collective of industrial workers ... organized around the image of the universal 'Proletarian', who strides forth from the earth to conquer planets and stars." This form of cosmism, along with the writings of Nikolai Fyodorov, was a strong influence on Andrei Platonov.
Many ideas of the Russian cosmists were later developed by those in the transhumanist movement. Victor Skumin argues that the Culture of Health will play an important role in the creation of a human spiritual society into the Solar System.
The Culture of Health is the basic science about Spiritual Humanity. It studies the perspectives of harmonious development of "Spiritual man" and "Spiritual ethnos" as a conscious creator of the State of Light into the territory of the Solar System" (by Skumin).
Tuesday, November 17
It's All Relative... I Suppose...
BIRTH... DEATH... INFINITY
BEGINNINGS AND ENDINGS
THE PURPOSE OF THE ENORMITY OF THE UNIVERSE
Relativity - The absence of standards of absolute and universal application... and from the area of physics, the dependence of various physical phenomena on relative motion of the observer and the observed objects, especially regarding the nature and behavior of light, space, time, and gravity...
- Politics
- Wars
- Crime
- Ownership
- Thoughts and Feelings
- Understandings
- Knowledge
- Application
But, in all of this wisdom lies a tiny misconception in that it is not logical at all relative to our planet earth and that is the purpose of the universe... its size... and the relative fact that it is expanding and into what we know not but can only speculate since our knowledge is limited and only relative at best.
For EXAMPLE... there are more stars in the universe than there are grains of sand here on EARTH... and while that statement seems very profound indeed, it still does not explain why our UNIVERSE NEEDS TO BE SOOOO BIG...
Relatively speaking things are out of proportion when it comes to planet earth and the universe or our solar system and the universe or even our Milky Way Galaxy and the universe when it comes to any kind of comparison.
And... well into the future of the existence of our universe, I suppose there will be space travel as well as time travel and beings can move back and forth at their leisure and for whatever relative reasons and purposes that they might have... but it still does not explain what this damn universe has to be so big, relatively speaking that is to say or ask.
Monday, October 12
Hot Tub Revelations
The black sky above my head was loaded with millions perhaps billions of stars even though I could only see less than 00.00000001% of 99.9999999% of them around our planet earth which is located in our solar system... and, to expand your mental horizons imagine millions/billions of solar systems in our galaxy and millions/billions of galaxies in our quadrant of our universe.
Now, let's imagine our universe is a dinner plate and our quadrant in this universe represents 1 degree of the 360 degrees that completes the full circle of the universe. Of course, it is also possible that our quadrant is not 1 degree but 1/10 or 1/100 or 1/1,000 or 1/10,000 of 1 degree.
In short, our universe is incredible vast and in each quadrant there are literally billions of billions of billions of solar systems and galaxies... so, you can just imagine how many stars there are.
- why am I here?
- what's my purpose here?
- was it created by the BIG BANG?
- was it created by CREATION?
- how?
- why?
- where did the stuff that created the BIG BANG come from?