It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

A new study using data from NASA's James Webb Space Telescope (JWST) has overturned long-held beliefs about mini-Neptune ...

Scientists have long assumed that, like rocky planets such as Earth, sub-Neptunes begin with molten magma oceans. Their thick ...

It only took some 417 years since the invention (if going by patent filings) of the telescope to finally see Neptune's auroras, and it's thanks to NASA's James Webb Space Telescope, or JWST (the same ...

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory. Far from the Sun, and Earth, the sky-blue planet Neptune has been captured shimmering ...

The powerful space telescope zoomed in on Mors-Somnus, a binary pair of icy asteroids that originated within the Kuiper Belt. When you purchase through links on our site, we may earn an affiliate ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

For years, scientists believed most mini-Neptunes were covered by vast oceans of molten rock—essentially entire planets made ...