Diamond rain falls on ice giants Uranus and Neptune, where intense pressure and heat transform methane into crystallizing ...

If there is one star that serves to announce the arrival of fall as the leaves have begun to turn, unquestionably that title ...

The dog collar is impeccably white, the suit perfectly pressed, the black shoes polished to a shine. In appearance, Father ...

Comets Lemmon and SWAN are nearing Earth in a rare double cosmic treat. Where and what time can you see them? What to know.

The planet orbits a faint red dwarf star and sits in its habitable zone, where liquid water could exist if an atmosphere is ...

Below the waves of the Mediterranean, Europe's KM3NeT neutrino telescope is on a cosmic hunt. Towering strings of sensors ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

In a secluded corner of the Lynx constellation, just 18 light-years from our planet, astronomers have found a stunning ...

A new exoplanet candidate has just burst onto the scene, and it may be one of the best alien worlds yet on which to search ...

A newly discovered planet sits in the habitable zone of its star, where temperatures are right for liquid water if the ...

At the same time, significant reserves of organic material, combined with the subglacial ocean of water, seas of methane and ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...