Category Astronomy/Space

36 billion solar masses: Cosmic Horseshoe galaxy harbors what may be the most massive black hole ever detected

'Most massive black hole ever discovered' is detected
Another image of the Cosmic Horseshoe, but with the pair of images of a second background source highlighted. The faint central image forms close to the black hole, which is what made the new discovery possible. Credit: NASA/ESA/Tian Li(University of Portsmouth)

Astronomers have discovered potentially the most massive black hole ever detected. The cosmic behemoth is close to the theoretical upper limit of what is possible in the universe and is 10,000 times heavier than the black hole at the center of our own Milky Way galaxy.

It exists in one of the most massive galaxies ever observed—the Cosmic Horseshoe—which is so big it distorts spacetime and warps the passing light of a background galaxy into a giant horseshoe-shaped Einstein ring.

Such is the enormousness of the ultram...

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Perseverance rover captures Mars vista as clear as day

Captured at a location called “Falbreen,” this enhanced-color mosaic features deceptively blue skies and the 43rd rock abrasion (the white patch at center-left) of the NASA Perseverance rover’s mission at Mars. The 96 images stitched together to create this 360-degree view were acquired May 26, 2025.

The imaging team of NASA’s Perseverance Mars rover has taken advantage of clear skies on the red planet to capture one of the sharpest panoramas of its mission so far. Visible in the mosaic, which was stitched together from 96 images taken at a location the science team calls “Falbreen,” are a rock that appears to lie on top of a sand ripple, a boundary line between two geologic units, and hills as distant as 40 miles (65 kilometers) away...

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Cloud–cloud collision sparks active star formation in Milky Way

Cloud-cloud collisions reshape molecular clouds and trigger star formation
The distribution of the two colliding molecular clouds (with blue and red indicating the blue-shifted and red-shifted clouds, respectively) and the star formation activity. Credit: Astronomy & Astrophysics (2025). DOI: 10.1051/0004-6361/202453285

A recent study led by Dilda Berdikhan, a Ph.D. student from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences, has uncovered compelling evidence that a cloud–cloud collision has triggered active star formation in the molecular cloud G013.313+0.193 (hereafter G013.313) in the Milky Way. The findings are published in Astronomy & Astrophysics.

Using observational data from the NanShan 26-m Radio Telescope and the Delingha 13...

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Scientists just recreated the Universe’s first molecule and solved a 13-billion-year-old puzzle

Researchers have discovered new insights into the reaction pathways of the first molecule in space. Long before stars lit up the sky, the universe was a hot, dense place where simple chemistry quietly set the stage for everything to come. Scientists have now recreated the first molecule ever to form, helium hydride, and discovered it played a much bigger role in the birth of stars than we thought. Using a special ultra-cold lab setup, they mimicked conditions from over 13 billion years ago and found that this ancient molecule helped cool the universe just enough for stars to ignite. Their findings could rewrite part of the story about how the cosmos evolved from darkness to light.

Immediately after the Big Bang, which occurred around 13...

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