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El Niño already disrupting ocean food web
Scientists report the loss of phytoplankton - at the base of the ocean food web - from this year's strong El Niño. It's all part of a fascinating cycle of boom or bust for marine animals.
November 6, 2015
Report from Zimbabwe: First rain and crepuscular rays
A first rain in six months for Mutare, Zimbabwe. Afterwards, crepuscular rays in a clear blue sky, then against a flaming red sunset.
November 6, 2015
Solar wind likely stripped Martian atmosphere
Mars was once warm and wet, say scientists. But most of the water from its atmosphere was likely stripped away by solar winds.
November 6, 2015
Family portrait of Mars dust devils
A telescopic camera on a Mars orbiter caught these 8 dust devils in a single afternoon.
November 6, 2015
Tune in to second spacewalk live November 6
If you missed last week’s spacewalk, here’s another chance. The same two ISS astronauts are performing their second spacewalk today (November 6, 2015), starting at 7:10 a.m. EST (1210 UTC).
November 6, 2015
What is El Niño?
A big El Niño is developing in 2015, say scientists. This NASA video explains El Niño and its impact on the marine food web.
November 5, 2015
Whoa! That’s a big galaxy cluster
The cluster's mass is a quadrillion times that of our sun - making it the most massive known cluster that far back in space and time.
November 4, 2015
See it! Photos of Venus-Mars conjunction
Venus is the brightest planet, and Mars is faint now. On November 3, 2015, they were closest until 2017. Watch the moon pass them later this week!
November 4, 2015
New images of close-passing 2015 TB145
New, more detailed images and video - released yesterday - of object 2015 TB145, which swept close to Earth on Halloween. Does it still look like a skull?
November 4, 2015
Peeling back layers of a warm Neptune
Astronomers have discovered an immense hydrogen cloud streaming off a Neptune-sized exoplanet. The planet's atmosphere is evaporating, say scientists.
November 3, 2015
