Before we say goodbye to our interstellar visitor, another close encounter is on its way. This one could be course-altering.

The Sun constantly emits streams of charged particles, known as the solar wind, from its outer atmosphere, the corona. These particles travel throughout the Solar System and interact with Earth's ...

Can NASA and Elon Musk get us to Mars and beyond?

Why did a $72 million mission to study water on the moon fail so soon after launch? A new NASA report has the answer.

A collapsed lava tube detected in 30-year-old radar data from Venus may be part of a much wider network of underground caves.

Researchers have revealed stunning new details about the auroras on Ganymede, Jupiter’s largest moon. This research, led by ...

Why did a $72 million mission to study water on the moon fail so soon after launch? A new NASA report has the answer.

Engineers at NASA's Jet Propulsion Laboratory have been gazing at signals that left the solar system before many of today's graduate students were even born ...

When you read the new lunar chronology work, the first thing that comes to mind is how unglamorous the revolution appears. No ...

“While 3I/ATLAS is a visitor from interstellar space, travelling from outside the Solar System, its behaviour is completely ...

Your best bet to see the parade is to find a dark place with a clear view of the western horizon about 30 minutes after sunset. Many astronomers recommend using mobile apps like Stellarium or Star ...

The NASA administrator Jared Isaacman tells Ross Douthat how his trips to space shaped his perspective on space travel.