Astronomers have directly measured the mass of a dead star using an effect known as gravitational microlensing, first predicted by Albert Einstein in his General Theory of Relativity, and first observed by two Cambridge astronomers ...
Astronomy
Feb 2, 2023
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187
Better catch the moon's disappearing act Tuesday—there won't be another like it for three years.
Space Exploration
Nov 7, 2022
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1249
Stars with the mass of the sun or larger are typically accompanied by one or more orbiting companion stars. The system forms when gravity contracts the gas and dust of an interstellar cloud until clumps develop that are dense ...
Astronomy
Jul 1, 2022
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173
A total lunar eclipse will grace the night skies this weekend, providing longer than usual thrills for stargazers across North and South America.
Space Exploration
May 13, 2022
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3649
NASA's Perseverance Mars rover has captured dramatic footage of Phobos, Mars' potato-shaped moon, crossing the face of the Sun. These observations can help scientists better understand the moon's orbit and how its gravity ...
Space Exploration
Apr 20, 2022
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2765
A solar eclipse over the Arctic created changes in auroras in both of Earth's hemispheres due to connections through the planet's magnetic field, according to a new study. The new work could help scientists predict changes ...
Earth Sciences
Jan 12, 2022
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549
A total solar eclipse plunged Antarctica from summer into darkness early Saturday in a rare astronomical spectacle witnessed by a handful of scientists and thrill-seekers—and countless penguins.
Space Exploration
Dec 4, 2021
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2308
The longest partial lunar eclipse in nearly 600 years, which will bathe the Moon in red, was visible for a big slice of humanity on Friday.
Space Exploration
Nov 18, 2021
1
910
You can see the longest partial lunar eclipse in hundreds of years this week.
Space Exploration
Nov 16, 2021
2
13099
From traversing sand dunes in the Sahara Desert to keeping watch for polar bears in the Arctic, a group of solar scientists known as the "Solar Wind Sherpas" led by Shadia Habbal, have traveled to the ends of the Earth to ...
Space Exploration
Jun 16, 2021
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