Simulations show a low-angle but huge impact carved out Sputnik Planitia, one of the lobes of Pluto’s heart-shaped feature
These bizarre cosmic explosions are still a mystery, but we have lots of ideas
Astronomers found the black hole as it tosses its companion star around
What should you do with your eclipse glasses now that it’s over?, and an amazing shot of a comet during totality.
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Amazing video of the eclipse from 1.6 million km away, and a tiny space rock whizzes by today
I only saw a partial solar eclipse, but it was still wonderful.
A new idea about Supernova 1987A’s ring may explain more of its bizarreness
A comic I did a little consulting on, and how low can binaries go?
Don’t believe stories that we have to throw out what we know about cosmology, though!
NASA budget cuts threaten a workhorse observatory, but you can help
The Milk Way’s supermassive black hole, Sgr A*, seen in polarized light.
