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Edwin Hubble born today and the expanding universe
In 2018, the International Astronomical Union voted to rename Hubble's law as the Hubble–Lemaître law to share credit between Edwin Hubble and Georges Lemaître.
November 20, 2025
Exoplanet atmospheres are a key to habitability
The habitable zone of a planet might be key to whether life can survive there. But so are exoplanet atmospheres, scientists say.
November 20, 2025
Lost sisters of the Pleiades are scattered across the sky
Astronomers have discovered that the Pleiades star cluster has more than 3,000 sibling stars that originated from the same giant molecular cloud.
November 19, 2025
Was NASA’s ‘no life on Mars’ conclusion in the 70s wrong?
In the late 1970s, NASA declared 'no life on Mars' when the Viking landers failed to find organic molecules (but they did). So was that conclusion a mistake?
November 18, 2025
Dying old stars destroy their planets, new research shows
Astronomers have found new evidence that dying stars destroy their planets - with the closest planets at greatest risk - as the stars swell up into red giants.
November 16, 2025
Shape of a supernova detected 1 day after explosion
Astronomers used quick work to point a telescope at a supernova blast and detected the shape of a supernova just one day later.
November 16, 2025
Our solar system is moving 3 times faster than expected
A new study suggests that our solar system is moving 3 times faster than expected. The new result might conflict with the standard model of cosmology.
November 14, 2025
Whoa! Universe’s expansion slowing down?! See a video
We thought we lived in a rapidly accelerating expanding universe after all. But new research suggests the universe's expansion is already slowing.
November 14, 2025
ESCAPADE mission successfully launches toward Mars
On November 13, 2025, a Blue Origin New Glenn rocket successfully launched the ESCAPADE mission and its twin probes - Blue and Gold - to Mars.
November 13, 2025
Could black hole shadows reveal new theories of gravity?
A new international study proposes how astronomers could use future improved images of black hole shadows to test alternative theories of gravity.
November 13, 2025
