News
- Planetary Science
Jupiter as mirror for the sun’s X rays
X rays emanating from Jupiter's midriff actually originate on the sun, new observations show.
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College may endow memory to old brains
College-educated older adults recruit new brain areas to counteract some of the memory loss that occurs with aging, a new brain-imaging study suggests.
- Health & Medicine
New protease inhibitor looks promising
An antiretroviral drug under development may work in patients for whom existing drugs fall short.
- Physics
Light’s Hidden Holdup: Reflected laser beams loiter a little
Using an ultrashort pulse laser, physicists have measured a minuscule time delay that affects light reflecting off many surfaces.
