A new study from the Planetary Research Institute suggests that briny water could temporarily form on Mars’ surface in the shadows of boulders for just a few days each Martian year.

For the first time, a fast radio burst has been found to be repeating, in a regular 16-day cycle. The baffling detection from the CHIME radio telescope deepens the mystery of these bizarre intergalactic objects.

An astronomer reports on a very old galaxy cluster – labeled XLSSC 122 – whose light has taken 10.4 billion years to travel across the universe to us.

A “beating heart” of frozen nitrogen controls Pluto’s winds and may give rise to features on its surface, according to a new study.

We think of Uranus and Neptune almost as twins. In some ways, they are very similar. But a new study by researchers at PlanetS explains why, in some aspects, they are also radically different.

In a cosmic ‘stellar fight,’ a red giant star engulfed its smaller binary companion star. The chaos, however, created a beautiful space image.

Activity on the sun affects Earth’s magnetic field. It can cause geomagnetic storms, the same events that create the beautiful aurorae, or northern and southern lights. Are these storms dangerous?