Pointed away from Earth about 404 miles overhead, the orbital observatory will circle the planet from north to south about 14.5 times each day as it images a single, circular strip of the sky. Given ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

A FIELD of at least 20 asteroids has been found lurking near Venus, having previously been hidden by the Sun’s glare, experts ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

In a scientific first, an international team of astronomers has 3D ... planet’s atmosphere behaves in ways that challenge our understanding of how weather works — not just on Earth, but on all ...

According to a new paper published in the journal Nature, astronomers have mapped the 3D structure of the layered ... works—not just on Earth, but on all planets. It feels like something out ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

This resonance occurs when the orbits of planets synch up in whole-number ratios. For example, a planetary system called K2-138 contains a string of 5 planets that are all in 3:2 harmonies with ...

The first metal thingamajig ever 3D ... in the Space Station's Columbus module — a feat unto itself, given that setting up complicated machinery like that is hard enough on Earth and all the ...

"Actually, one of the specifications for being a planet is, they have enough mass that makes them round," Susana Barros, a senior researcher at the Institute of Astrophysics and Space Sciences in ...