Scientists have discovered a rare six-planet system where all planets orbit their star in perfect mathematical harmony.
A planet parade like the one beginning tonight is quite uncommon, occurring once every 10-20 years. Here are the planets you ...
Stargazers will get a peek at what's been called a "parade of planets," when up to seven planets may appear to line up.
The European Space Agency (ESA) and Japan Aerospace Exploration Agency (JAXA) launched the joint Mercury mission in 2018. The ...
Smaller gas giants are less likely to survive in such systems, surrounded by clashing planetary titans. With their lower ...
Keep your eyes on the sky this upcoming year for a chance to spot breathtaking meteor showers, a special view of Saturn and a ...
Mars’ strangely small mass still puzzles planetary scientists. Definitive answers as to why are still hard to come by.
The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, ...