Uncategorized
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The Next Ocean
Increasing carbon dioxide in the air is changing the pH of the ocean, which could mean very different communities of sea creatures.
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19933
This article was extremely well written! It was engaging and clear. Thank you! Katherine MuzikOkinawa, Japan
- Health & Medicine
Beyond Blood
Bloodless MRI seeks a more direct window into the working brain than conventional techniques.
- Astronomy
Supernova Outbreak: X rays signal earliest alert
Thanks to a lucky break and an overactive galaxy, astronomers report the earliest detection yet of a normal supernova—the explosive death of a massive star.
- Humans
From the March 5, 1938, issue
Shoes that give silent testimony for safety measures, ten moons and counting for Saturn, and finding oil in impossible places.
- Humans
One-Stop Shopping for Every Species
On Feb. 26, the Encyclopedia of Life went live. This site hopes to become the definitive place to find information on every living species—millions and millions of them. The first extensive sets of entries will include fish and members of the potato and tomato families. But more species will be added all the time—offering basic […]
- Earth
Ocean ups and downs—the long view
Sea level has dropped about 170 meters in the past 80 million years, thanks in part to the thinning of ocean crust and the formation of land-based ice sheets.
- Health & Medicine
A Way Forward: Releasing the brakes on cancer vaccines
A new way to overcome tumors' defenses against the immune system marks an important step toward effective cancer vaccines.
- Astronomy
Web Special: Supernova Outbreak—X rays signal earliest alert
MARCH 5 — Thanks to a lucky break and an overactive galaxy, astronomers report the earliest detection yet of a normal supernova—the explosive death of a massive star. Advance article from March 8 issue.
- Plants
Promiscuous orchids
When pollinators aren't loyal to a single species of orchid, the plants maintain their species integrity by stymieing reproduction.
- Physics
Black Hole of Light: Laser pulses create model of event horizon
Physicists have created the optical analog of a black hole's surface of no return, a setup that could help test whether actual black holes glow.
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19932
Regarding this article: A black hole is in a geometrical sense an end to the universe. If we picture the universe using Euclidean geometry, we can imagine going straight out forever. As we approach a black hole, the huge mass changes the geometry so that we also go on forever reaching the surface. We cannot […]
