Mercury reaches greatest elongation in the evening sky this month. Venus and Jupiter have a spectacular conjunction, and ...

The debate could reopen in 2030 when NASA’s Europa Clipper spacecraft gets the closest view of the icy moon’s surface.

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...

The rock, Clinton said, “speaks to us across … billions of years and millions of miles. It speaks of the possibility of life.

New observatories and spacecraft missions are probing environments in our solar system that could potentially host life but ...

Rogue planet moons habitable for 4.3 billion years without any star? A new LMU and Max Planck Institute study shows tidal ...

Don't miss Jupiter, Venus and Mercury create a dazzling line in the western sky at sunset tonight.

Ganymede, the solar system's largest moon, uniquely generates its own magnetic field. New research suggests its still-forming ...

The best sci-fi games are often pigeonholed into specific genres like shooters, strategy games, and RPGs, and for good reason ...

Launched in 1977, spacecraft Voyager 1 celebrates 40 years in space on Tuesday. Its twin spacecraft, Voyager 2, celebrated the same anniversary last month on Aug. 20. Here's a look back at some of the ...

Is Mars the end of the line or is it a steppingstone to somewhere else? If we “moon-to-Mars,” do we then “Mars-to-somewhere else?” These are curious questions that have received very little attention ...

After years of sending dozens to researchers to Nunavut's Devon Island, U.S. space agency NASA will only be sending a skeleton crew to Nunavut this summer, according to the head of the Mars Institute.