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Comet Halley to reach farthest point from sun on December 9
Comet Halley reaches its farthest point in orbit from the sun on December 9, 2023. It'll then begin its return trip to the inner solar system, arriving in 2061.
December 8, 2023
Dark cloud near Milky Way’s center is strangely quiet
There's a dark region near the Milky Way's center known as the Brick. This cold cloud of gas and dust should be forming stars, but, strangely, it's not.
December 8, 2023
Menkar – a visual double – is the Whale’s alpha star
It's not the most famous star in Cetus the Whale, or the brightest. But Menkar is the Whale's alpha star and has its own claims to fame.
December 8, 2023
Rocky exoplanets can form in the most extreme environments
NASA's James Webb Space Telescope has found molecular building blocks of rocky exoplanets in a region previously thought to be too extreme and hostile.
December 7, 2023
Could a giant void explain the universe’s expansion?
Scientists think we could live in a giant void, a less-dense bubble leftover from the Big Bang. If so, it could explain the expansion rate of the universe.
December 7, 2023
Einstein’s gravity and quantum mechanics united at last?
Modern physics is founded on 2 pillars: Einstein's gravity and quantum mechanics. But these 2 theories contradict each other. Does this theory reconcile them?
December 6, 2023
Astronomers spot 1st giant stream of stars between galaxies
Astronomers have found the 1st giant stream of stars outside a galaxy. It lies among the galaxies in the Coma cluster, and it may shed light on dark matter.
December 6, 2023
Exoplanet art lets you visualize alien worlds
Enjoy the exoplanet art of Martin Vargic. Martin illustrated more than 1,000 exoplanets based on astronomers' discoveries of alien worlds around other stars.
December 6, 2023
1st planet-forming disk found in another galaxy
For the first time, astronomers have discovered a planet-forming disk around a young star in another galaxy outside our own Milky Way galaxy.
December 5, 2023
Use Orion’s Belt to find 4 bright stars in the sky
How to use Orion's Belt to find 4 bright stars - Betelgeuse and Rigel in Orion - Aldebaran in Taurus the Bull and Sirius in Canis Major.
December 5, 2023
