For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an ...

Astronomers have identified a star called PicII-503 inside the ultra-faint dwarf galaxy Pictor II, and its chemical ...

Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial ...

The first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. A team had found a small, strange galaxy that appeared to ...

What can Earth-sized exoplanets teach scientists about the formation and evolution of exoplanets throughout the cosmos? This is what a study recently posted to the arXiv preprint server hopes to ...

How can scientists use spin as a fossil record for planetary evolution? This is what a recent study accepted for publication in The Astronomical Journal ho | Space ...

The binary star system ν Octantis has long been considered hostile to planet formation. The discovery of a white dwarf in the system offers an alternative view. However, Cheng and colleagues observe ...

For all the talk about life across the cosmos, Earth remains the only confirmed example. That single data point makes your place in the universe feel both ordinary and strange. Two facts sharpen the ...

Spin separates giant planets from 'failed stars' Clearest evidence yet that giant planets spin faster than their cosmic lookalikes. (Nanowerk News) Astronomers have ...

NASA's Hubble Space Telescope detected material from a Pluto-like body spiraling into a white dwarf star 260 light-years away from Earth. Credit: NASA / JPL-Caltech / Tim Pyle illustration For the ...

Many of the stars in the Milky Way galaxy are small, dim red dwarfs—stars much smaller than the sun in both size and mass. TOI-6894, located far away from Earth, is one of them. Astronomers previously ...