Science Explorer
Science Explorer

Science Explorer

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Are the JWST's Early Overrmassive Black Holes Just Normal-Range Outliers?
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Are the JWST's Early Overrmassive Black Holes Just Normal-Range Outliers?

The JWST found an abundance of overmassive black holes at high redshifts, pushing the limits of black hole (BH) science in the early Universe. Results have claimed that these BHs are significantly more massive than expected from the BH mass-host galaxy stellar mass relation derived from the local Universe. But new research shows they were just outliers in the normal range of masses that don't require any special causes.

Astronauts could use lightning-like plasma jets to kill germs on the moon and Mars, demo hints
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Astronauts could use lightning-like plasma jets to kill germs on the moon and Mars, demo hints

A new lab experiment is testing plasma jets as a water-free solution for "space laundry" on future missions to the moon and Mars.

Astrobiology's Looming Statistical Crisis
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Astrobiology's Looming Statistical Crisis

Multi-billion dollar space telescope programs aren’t only feats of aerospace engineering. They also feature “lies, damn lies, and statistics”. Or at least statistics. They definitely feature those, as does all good observational astronomy. The problem with statistics is, in order to get a clear definitive answer, you need lots of samples. And, to put it mildly, it’s hard to find lots of samples of planets with alien life on them. And even harder to prove that the signals we think are caused by alien life aren’t caused by some other non-biological process. Or at least that’s the theory underpinning a new paper available in pre-print on arXiv from David Kipping of Columbia University (and Cool Worlds YouTube fame).

First whole-genome sequence of a Greenland shark holds clues to their extreme longevity
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First whole-genome sequence of a Greenland shark holds clues to their extreme longevity

A genomic study of Greenland sharks, thought to be the longest-lived vertebrates on the planet, is hinting at the secrets to their epic lifespan and cancer resistance.

The Filamentary Funnels That Form Stars
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The Filamentary Funnels That Form Stars

The universe is full of fascinating structures, and some of the most striking take shape inside the giant clouds where stars are born. There, streams of gas appear to converge from all directions toward a dense central hub, like spokes meeting at the center of a wheel. New simulations show why this is, and why star formation overall is so inefficient.