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The red supergiant star Betelgeuse, in the constellation of Orion, has been undergoing unprecedented dimming. This stunning image of the star's surface was taken with the SPHERE instrument on ESO's Very Large Telescope in January 2019, before the star started to dim. When compared with the image taken in December 2019, it shows how much the star has faded and how its apparent shape has changed.

Betelgeuse, the unusually dimming star, is smaller and closer than scientists thought

NASA's OSIRIS-REx is ready for touchdown on asteroid Bennu. On Aug. 11, the mission will perform its "Matchpoint" rehearsal -- the second practice run of the Touch-and-Go (TAG) sample collection event. The rehearsal will be similar to the Apr. 14 "Checkpoint" rehearsal, which practiced the first two maneuvers of the descent, but this time the spacecraft will add a third maneuver, called the Matchpoint burn, and fly even closer to sample site Nightingale -- reaching an altitude of approximately 131 ft (40 m) -- before backing away from the asteroid.
This artist's rendering shows OSIRIS-REx spacecraft descending towards asteroid Bennu to collect a sample of the asteroid's surface.

Asteroid Bennu is about to play 'tag' with a NASA spacecraft

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NASA and Nokia are putting a 4G network on the moon

This 14-year-old girl won a $25K prize for a discovery that could lead to a cure for Covid-19