Kuiper Belt's ice cores.

Mystery orbits in outermost reaches of solar system not caused by ‘Planet Nine’

The strange orbits of some objects in the farthest reaches of our solar system, hypothesised by some astronomers to be shaped by an unknown ninth planet, can instead be explained ...

Geothermal Heating Could Make Life Possible on the Super Earth Planet at Barnard’s Star

In 2018, scientists announced the discovery of a extrasolar planet orbiting Barnard’s star, an M-type (red dwarf) that is just 6 light years away. Using the Radial Velocity method, the ...
The Hubble Ultra Deep Field of galaxies. A new study of the star formation activity in 179 of the galaxies in this image including many dating from about six billion years ago confirms an earlier puzzling result: lower mass galaxies tend to make stars at a rate slightly slower than expected.

Making stars when the universe was half its age

The universe is about 13.8 billion years old, and its stars are arguably its most momentous handiwork. Astronomers studying the intricacies of star formation across cosmic time are trying to ...
An artist's rendering of the quasar J043947.08+163415.7, the brightest known quasar with the luminosity of 600 trillion Suns

Brightest quasar ever found shines with the intensity of 600 trillion Suns

From our point of view here on Earth, the brightest object in the sky is unquestionably the Sun. But this unremarkable star is a mere 10-watt bulb compared to quasars, ...
Feel like traveling to another dimension? Better choose your black hole wisely.

Rotating black holes may serve as gentle portals for hyperspace travel

One of the most cherished science fiction scenarios is using a black hole as a portal to another dimension or time or universe. That fantasy may be closer to reality ...
This artist's impression shows hot gas orbiting in a disk around a rapidly-spinning black hole. The elongated spot depicts an X-ray-bright region in the disk, which allows the spin of the black hole to be estimated.

X-ray pulse detected near event horizon as black hole devours star

On Nov. 22, 2014, astronomers spotted a rare event in the night sky: A supermassive black hole at the center of a galaxy, nearly 300 million light years from Earth, ...
The Whirlpool Galaxy (M51a) and companion galaxy (M51b). This Hubble Space Telescope image represents a merger between two galaxies similar in mass to the Milky Way and the Large Magellanic Cloud.

Catastrophic galactic collision could send Solar System flying into space

New research led by astrophysicists at Durham University, UK, predicts that the Large Magellanic Cloud (LMC) could hit the Milky Way in two billion years' time. The collision could occur ...
Credit: Shutterstock

Scientists Find the ‘Missing’ Dark Matter from the Early Universe

Dark matter, it seems, has been clinging to galaxies for a very long time. Most galaxies that existed 10 billion years ago had about as much dark matter as galaxies ...
An artist's impression of Ultima Thule, which is already turning out to be quite mysterious before New Horizons even arrives

NASA’s New Horizons probe seems to be approaching a surprisingly “dark” world

NASA's New Horizons probe is just days away from its historic flyby of Ultima Thule, a mysterious object on the fringe of the solar system. Since it awoke from hibernation ...