Astronomy
Kissing may have evolved in an ape ancestor 21 million years ago
Kissing may have evolved in an ape ancestor 21 million years ago
What's Driving Dark Energy?
To be fair, all scientific models are in some sense wrong
The Andromeda Galaxy Quenches Its Satellite Galaxies Long Before They Fall In
Galaxies grow massive through mergers with other galaxies. Massive galaxies like the Milky Way and Andromeda not only merge with other large galaxies, they also absorb their much smaller satellite dwarf galaxies. But these smaller galaxies can become quenched long before they're absorbed, and new research examines this process at Andromeda (M31).
Five Essential Books on Plastic, Power, and Pollution
If you enjoyed Beth Gardiner’s feature about big oil’s bet on plastics, here are more books curated by Scientific American
NASA Telescopes View Spiral Galaxy
Four-fifths of the world's population now live in urban areas
Four-fifths of the world's population now live in urban areas
Experts Explain How Botulism Toxin Can End Up in Baby Formula
In recent weeks, at least 23 infants in the U.S. have been infected with botulism in an outbreak linked to ByHeart powdered infant formula
We can finally hear the long-hidden music of the Stone Age
We can finally hear the long-hidden music of the Stone Age
Comet K1/ATLAS Crumbles, Interstellar Comet 3I/ATLAS Delights
Watch an Oort Cloud comet disintegrate before your eyes. Meanwhile, interstellar intruder 3I/ATLAS is brighter than expected.
The post Comet K1/ATLAS Crumbles, Interstellar Comet 3I/ATLAS Delights appeared first on Sky & Telescope.
How Three Runaway Stars Solved A Galactic Mystery
All motion is relative. That simple fact makes tracking the motion of distant objects outside our galaxy particularly challenging. For example, there has been a debate among astronomers for decades about the path that one of our nearest neighbors, the Large Magellanic Cloud (LMC), took over the last few billion years. A new paper from Scott Lucchini and Jiwon Jesse Hand from the Harvard Center for Astrophysics grapples with that question by using a unique technique - the paths of hypervelocity stars.
