Six planets will align in February as part of a rare planetary parade. Find out how and when you can see the event.

Six planets will align in February as part of a rare planetary parade. Find out how and when you can see the event.

Six planets will align in February as part of a rare planetary parade. Find out how and when you can see the event.

Six planets will align in February as part of a rare planetary parade. Find out how and when you can see the event.

When private companies develop and sell solar geoengineering technologies, they draw a proprietary curtain over a planetary matter. If countries want to pursue the public good, international ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth. Out ...

For years, astronomers have been searching for a ninth planet in our solar system (after giving Pluto the old heave-ho and demoting it to a dwarf planet) and now researchers say they've found a ...

The month is packed with skywatching highlights—including six visible planets, an annular solar eclipse, and the Milky Way’s bright core returning to view in the Northern Hemisphere. A composite image ...

Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the European Space Agency, ...