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On this day in space! Oct. 13, 1773: Charles Messier Discovers the 'Whirlpool Galaxy'
On Oct. 13, 1773, a French astronomer named Charles Messier discovered the "Whirlpool Galaxy," also known as Messier 51, or M51.
This might be the smallest clump of pure dark matter ever found
The discovery of what is potentially the smallest clump of dark matter ever seen strengthens the case for cold dark matter.
The moon cozies up to Jupiter tonight. Here's how to see it
Two bright wanderers share the autumn sky as Jupiter rises beside the half moon.
What time is SpaceX's Starship Flight 11 launch today?
SpaceX plans to launch the 11th test flight of its Starship megarocket at 7:15 p.m. EDT (2315 GMT) on Monday (Oct. 13). Here's how you can watch.
Uranus and Neptune may not be 'ice giants' after all, new research suggests
We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these planets be called "rocky giants" instead.
Meteor hunters rejoice! The Orionid meteor shower 2025 peaks next week with no moon in sight
The annual Orionid meteor shower comes to a peak on Oct. 20-21
Rubin Observatory spins beneath the stars | Space photo of the day for Oct. 13, 2025
The Vera C. Rubin Observatory's Simonyi Survey Telescope scans the heavens to start its decade-long exploration in the search for dark matter.
Watch SpaceX launch its Starship Flight 11 megarocket test flight today
SpaceX plans to launch Flight 11 of its huge, reusable Starship rocket on Monday evening (Oct. 13), and you can watch the action live.
