10 Sep 2026 (20 minutes away): Uranus enters retrograde motion

The Summer Triangle — 3 stars, 1 seasonal mystery

11 Sep 2026 (8 hours away): New Moon

10 Sep 2026 (44 minutes away): Uranus enters retrograde motion

On this day in space! Sept. 10, 2011: NASA launches GRAIL probes to the moon to map lumpy lunar gravity

LINK spacecraft gets close to NASA's Swift Observatory, but not close enough to save it

11 Sep 2026 (9 hours away): New Moon

10 Sep 2026 (1 hour away): Uranus enters retrograde motion

11 Sep 2026 (10 hours away): New Moon

10 Sep 2026 (2 hours away): Uranus enters retrograde motion

Scientists study 3,000 supernovas and discover that dark energy may be evolving

11 Sep 2026 (11 hours away): New Moon

10 Sep 2026 (3 hours away): Uranus enters retrograde motion

The next 'Star Trek' movie will be inspired by 'Crimson Tide', and 'Strange New Worlds' latest episode just showed them how to do it

Mercury is shrinking faster than we thought. What's going on inside of it?