A levitating vehicle might someday explore the moon, asteroids, and other airless planetary surfaces.

The boiling new world, which zips around its star at ultraclose range, is among the lightest exoplanets found to date.

A newly discovered “ultrahot Jupiter” has the shortest orbit of any known gas giant.

Human activities in space today are far more numerous and complicated compared to the 1967. Two experts explain the need for better laws to keep space peaceful.

Russia destroyed one of its old satellites during a successful test of an anti-satellite weapon. A space security expert explains what this weapon was and the dangers of the expanding debris field.

Our data provides a common benchmark unbiased by reporting from companies or governments.

Did we observe the most distant gamma ray burst yet seen, or was it something closer to home?

What did Mercury look like as BepiColombo swung by?

What did Mercury look like as BepiColombo swung by?

In the past decade, the number of satellites in orbit has skyrocketed thanks to tiny electronics and cheap launches. The crowded night sky is posing problems for astronomers and astronauts.