Star Archives - Page 3 of 5 -
Thanks to the NASA/ESA Hubble Space Telescope, some of the most mysterious cosmic residents have just become even more puzzling. New observations from the Hubble Space Telescope challenge a previous theory for the apparent disappearance of a massive number of stars.
Some stars capture our imagination because they are the best candidates for planets teeming with life. Others might help us understand the origin of our own solar system, while still others stand out because they host planets that are just plain bizarre.
A team of astronomers led by John Bochanski has found the farthest stars in our galaxy in the mysterious Milky Way halo, a rare discovery that may change our understanding of the formation of our galactic home.
Even though we see stars every day, twinkling in the night sky, they never fail to fascinate scientists and ordinary observers alike. Here are the 5 largest stars in the universe in terms of mass, size, and luminosity.
There’s no doubt that we’ve figured out a lot about the cosmos, especially in the last century. But from black holes to pulsars, everything we find seems to bring just as many questions as answers. Astronomers don’t yet have all the answers, and every day heralds the arrival of a new discovery and a new cosmic mystery.
As far as stars go, ours is fairly ordinary and straightforward: a giant ball of absurdly hot gas that showed up a few billion years ago and has about a few billion left. But our sun is just one of at least 70 sextillion stars in the universe; with a number that huge, there are bound to be many far more interesting and bizarre than our own.
Astronomers have found that some sun-like stars have the ability to consume Earth-like planets. During their developmental stages, these sun-like stars swallow large amounts of rocky material, from which small, rocky planets such as Earth, Venus and Mars are formed.
The first stars in the universe formed from primordial hydrogen, helium, and a smattering of lithium. These materials were created in the cosmos’ first few minutes, whereas the stars formed hundreds of millions of years later. Those suns, which were likely 100 to 200 solar masses, fused heavier elements, called metals, in their cores.
Scientists have discovered a rapidly spinning neutron star with an unconventional living arrangement. This pulsar cohabitates with two white dwarfs, and the three are smashed together in a space smaller than Earth’s orbit around the Sun. The system is gravitationally extreme, with the three members all tugging on one another.