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Space
Comet A3 is brightening. Will it be the comet of the year?
Comet A3 Tsuchinshan-ATLAS survived its rumored disintegration and may be the brightest comet of the year this September and October. Finder maps here.
September 12, 2024
Spaceflight
Polaris Dawn astronauts complete first civilian spacewalk
Two of Polaris Dawn astronauts completed the 1st ever civilian spacewalk this morning. But all 4 astronauts were exposed to the vacuum of space. A new record!
September 12, 2024
Space
Watch a star’s surface bubble in fantastic video and images
For the 1st time, astronomers have watched a star's surface bubble in magnificent detail. The bubbling is hot gases on a star 178 light-years away.
September 12, 2024
Earth
Space
Earth to get an asteroid mini-moon for 2 months
Earth will get an asteroid mini-moon for 2 months when the 33-foot-wide 2024 PT5 makes a close pass of our planet and makes a temporary loop about us.
September 12, 2024
Sun
Sun news September 12: X flare earlier today
Sun news for September 12: An X1.3 flare happened on the sun's southeast limb (edge) earlier today. Geomagnetic storming is ongoing. Auroras on the way?
September 12, 2024
Astronomy Essentials
Tonight
Visible planets and night sky guide for September
Visible planets and night sky guide for September 2024. This evening, look for the moon low in the south as it moves through the Teapot asterism.
September 12, 2024
Earth
New dinosaur – a long-necked titanosaur – uncovered in Spain
A new species of titanosaur, a large plant-eating dinosaur with a long neck, was discovered near Cuenca, Spain. It lived 73 million years ago.
September 12, 2024
Constellations
Corona Australis is the sparkling Southern Crown
Corona Australis is a dim constellation lying below the Teapot asterism of Sagittarius. Its sparkling, curving shape befits its name.
September 12, 2024
Earth
Space
Human-made meteor shower could hit Earth in a decade
When DART spacecraft hit asteroid Dimorphos, it released debris that should arrive at Mars and Earth, creating the 1st human-made meteor shower for the planets.
September 11, 2024
Earth
Hurricane Francine hits Louisiana as a Cat 2 storm
Hurricane Francine came ashore in southern Louisiana on Wednesday afternoon as a category 2 storm. There are already reports of damage.
September 11, 2024
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