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

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

Astronomers used the VLA and MeerKAT radio telescopes to search the Hycean exoplanet K2-18b for alien technosignatures, analyzing millions of signals but finding no confirmed artificial radio transmis ...

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

A celestial planet parade of six planets will lineup in the sky for the next planetary parade this weekend. Here's what to ...

This is your final weekend to catch February’s fading 6-planet lineup or "planet alignment". Here’s what’s still visible — ...

The planets will align in the night sky on Feb. 28. Here is when to look up and which ones are visible without a telescope.

Most of this week's naked-eye planetary action will take place low in the western sky, which is where the aforementioned ...

A crash involving the planet’s largest moon, Titan, and a hypothetical moon may have triggered a curious sequence of events ...

A blood red moon anchors a month of planetary meetups, dark-sky delights, and improved chances to catch the northern lights around the spring equinox.