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Watch Firefly Aerospace launch 8 cubesats to orbit tonight

Firefly Aerospace's Alpha rocket is scheduled to launch for the fifth time ever just after midnight on Tuesday (July 2), and you can watch the action ...

Watch Firefly Aerospace launch 8 cubesats to orbit tonight

Once-in-a-lifetime star explosion, visible from Earth, could happen any day now

Binary star system T Coronae Borealis (T CrB) is about to go nova any day now. The recurrent nova explodes approximately every 79 or 80 years.

Once-in-a-lifetime star explosion, visible from Earth, could happen any day now

See the sun rage behind the ISS in epic time-lapse photo

Astrophotographer Miguel Claro caught the International Space Station as it crossed in front of the sun, making for a truly epic time-lapse photo .

See the sun rage behind the ISS in epic time-lapse photo

This mysterious ancient computer has a 'calendar ring' that followed the lunar year

A hand-powered calculator from 2,000 years ago, known as the Antikythera mechanism, had a calendar ring that likely followed the lunar year.

This mysterious ancient computer has a 'calendar ring' that followed the lunar year

Japan launches advanced Earth-observing satellite on 3rd flight of H3 rocket (video)

Japan's new H3 rocket launched for the third time ever tonight (June 30), sending the ALOS-4 Earth-observing satellite to orbit.

Japan launches advanced Earth-observing satellite on 3rd flight of H3 rocket (video)

Mars Odyssey celebrates 100,000 orbits, captures epic view of solar system's largest volcano

NASA's long-running Mars Odyssey orbiter celebrated its 100,000th orbit with a fresh view of Olympus Mons, the largest volcano in the solar system.

Mars Odyssey celebrates 100,000 orbits, captures epic view of solar system's largest volcano