TRAPPIST-1e, 40 light-years away, may have an Earth-like atmosphere, raising hopes for habitability beyond our solar system.

Methane gas may signal an atmosphere or geological activity on a distant dwarf planet located at the outer edge of the Solar System. A research team led by the Southwest Research Institute has ...

Some are no bigger than pebbles, while others stretch for miles, silently orbiting the sun in the asteroid belt or zipping ...

Astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being consumed by a white ...

Hubble has captured a dense, burned-out star in the act of consuming a Pluto-like object. Happening some 260 light years from Earth, the new observation, published in the Monthly Notices of the Royal ...

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation ...

In what we can only interpret as a show of solidarity for the Solar System's beleaguered dwarf planet Pluto, the Sun put its heart prominently on its sleeve atmosphere.

Astronomers have identified an Earth-size exoplanet, TRAPPIST-1 e, 40 light years away that could potentially sustain liquid ...

This cosmic drama offers a unique glimpse into the future fate of our own Solar system and highlights the power of Hubble’s ultraviolet vision to probe stellar remains that would otherwise go ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, ...

Gaia-4b is the most massive planet known to orbit a low-mass star. Also, see an animation for Gaia-5b, a brown dwarf orbiting a low-mass star. They were detected by the European Space Agency’s Gaia ...

A new study challenges the dream of water-rich “Hycean” planets like K2-18b, suggesting that most sub-Neptunes lose their water deep into their interiors during formation. Instead of vast oceans, ...