Monthly Archives: March 2015
How a sunset might look like to a human observer if our Sun was replaced by some of the other stars in our galaxy with different sizes and magnitudes, namely: Barnard’s Star, Gliese 581, Tau Ceti, Kepler-23, Alpha Centauri A, Procyon, Sirius, Pollux, Arcturus and Aldebaran. Enjoy this amazing Photo.
Some of the galaxies in our universe are veritable star nurseries. For example, our own Milky Way produces, on average, at least one new star every year. Others went barren years ago, now producing few if any new stars. Why that happens is a question that has dogged astronomers for years.
Most planets have just one or two stars to contend with. Now, though, astronomers have discovered the second known case of a planet residing in a quadruple star system. The planet was known before, but was previously thought to have only three stars, not four.
We all know and love the moon. We’re so assured that we only have one that we don’t even give it a specific name. It is the brightest object in the night sky, and amateur astronomers take great delight in mapping its craters and seas. To date, it is the only other heavenly body with human footprints. What you might not know is that the moon is not the Earth’s only natural satellite.
Not much is known about Earth’s “inner space” —its core — although scientists agree on one thing. Much of the core consists of iron. But just how much iron is there remains the subject of debate. Now, new research show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron.
Many people change a lot after their youth… and so to did our Universe. Nowadays, galaxies contain both dust and gas, but back in the early Big-Bang days, the earliest galaxies had no dust, only gas. Now, A team of astronomers, led by Darach Watson, from the University of Copenhagen used the Very Large Telescope‘s X-shooter instrument along with the Atacama Large Millimetre/submillimetre Array (ALMA) to observe one of the youngest and most remote galaxies ever found.
Nasa’ spacecraft Dawn is preparing to rendezvous with the largest object in the asteroid belt located between Mars and Jupiter. The Dawn craft is on target to slip into orbit around the dwarf planet Ceres on Friday after a three-year journey. It will be the second stop for Dawn, which earlier visited the asteroid Vesta. Dawn has been snapping pictures of Ceres as it nears the Texas-sized object. Sharper images are expected in the coming months as Dawn spirals closer to Ceres’ surface.
Kuiper Belt is vast expanse of space beyond the last known gas giant of the Solar System, the Neptune. This space is composed of icy objects. In 1950, it was proposed by Jan Oort, a Dutch astronomer that the comets that we see in our known solar system actually originate from far reaches of the solar system, a large unexplored reservoir! This was named as Oort Cloud.
Astronomy is full of astronomical numbers and if physics tells us anything it is that nothing is obvious. Astonishing facts about the universe are absolutely everywhere and you do not even have to go far from home to find some. Here is a list og 5 mind-blowing facts about the universe.
A rare medium-sized black hole known as NGC 2276-3c could be the “missing link” in the development of exotic bodies astronomers have been seeking for decades. A jet seen emanating from the object also seems to be snuffing out star formation in its neighborhood. The black hole sits within the galaxy NGC 2276, roughly 100 million light years from Earth.
For many years, mankind has wondered about the existence of life in worlds outside the Earth. It is possible though that alien life may indeed exist but not as we know it. In a new study published this week by researchers from Cornell University, the team of researchers has modeled a new methane-based life form that can metabolize and reproduce, similar to the oxygen-based life forms here on Earth.