Solar System

What lurks beneath the volcanoes of Jupiter's moon Io? NASA's Juno probe just took a peek

By Samantha Mathewson Published 24 July 26

The subsurface findings could transform how scientists study volcanoes across the solar system — including those on Earth.

This Week In Space LIVE: The Viking Mars landings 50 years later

By Tariq Malik Published 24 July 26

Tune in today, July 24, at 1:30 p.m. ET for a LIVE This Week In Space taping to mark the 50th anniversary of the Viking landings on Mars.

Scientists may have finally solved the mystery of the sun's missing silver

By Rahul Rao Published 23 July 26

Scientists say the sun has a little more silver than we thought.

Satellite spots a 'hummingbird' in Antarctica | Space photo of the day for July 23, 2026

By Chelsea Gohd Published 23 July 26

A hummingbird shape in satellite data from NISAR is actually a mountaintop spotted in Antarctica.

After nearly 30 years, NASA realized this near-Earth asteroid is actually a comet. The discovery may help us defend the planet some day

By Samantha Mathewson Published 22 July 26

Astronomers discovered that a near-Earth asteroid is actually a comet that could help scientists identify more hidden comets and improve planetary defense.

Our 1st-ever up-close look at the Martian surface | Space photo of the day for July 22, 2026

By Chelsea Gohd Published 22 July 26

What might seem like a simple black-and-white picture of some rocks is actually the first photograph ever taken on the surface of Mars.

New timelapse video shows NASA's Psyche spacecraft zooming by Mars

By Sharmila Kuthunur Published 22 July 26

"We didn't anticipate big discoveries, given how extensively the planet has been studied, but we did complement Mars science with the data we collected through Psyche's unique perspective."

A massive crater was spotted on Google Earth. It could be a scar from an ancient meteorite impact

By Elizabeth Howell Published 21 July 26

While getting ready for a camping trip, an amateur astronomer spotted a possible crater. It appears to be a match, pending microscopic results.

50 years after Viking 1's historic Mars landing, NASA is looking to the Red Planet's skies

By Mike Wall Published 20 July 26

NASA's Viking 1 mission blazed a crucial trail with its Mars landing on July 20, 1976. Now, half a century later, that trail leads up into the Red Planet's skies.