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Solar flare number 4 from Sunspot 1283!
The sun produced a fourth solar flare this week, two X-class flares, the strongest kind. Expect possible auroras, especially on the morning of September 11.
September 8, 2011
Top 10 tips for seeing the supernova
A cosmic explosion - a supernova - from 21 million light-years away has been in the news. To see it, find a star party and experienced observers.
September 8, 2011
Zoom in to star cluster NGC 2100 in Large Magellanic Cloud
A dazzling star cluster - NGC 2100 - lies in the Large Magellanic Cloud, a neighbor of the Milky Way.
September 7, 2011
Sharper view of footprints, landing site, rover tracks on moon
New images released today by NASA show tracks from Apollo 17's lunar rover - and the last footprints left on the moon by astronauts - from the year 1972.
September 6, 2011
Richard Feynman in graphic novel by Jim Ottaviani
Jim Ottaviani spoke with EarthSky about his new book on world-famous Nobel physicist Richard Feynman, released in hardcover in late August 2011.
September 6, 2011
Hubble movies show supersonic stellar jets in motion
Combined Hubble images show jets in motion from young stars.
September 4, 2011
Stars are hot, right? Not this star.
Stars are hot. But astronomers have found the coolest star - temperature-wise. This star is cooler than the human body.
September 1, 2011
International Space Station might be de-manned by November
International Space Station managers are being forced to adjust the space station's flight manifest following the August 24, 2011 crash of a Russian cargo ship in Siberia.
September 1, 2011
Has Comet Elenin split in two or disintegrated?
Infamous Comet Elenin might be self-destructing. Its core appears elongated, and its brightness has decreased - telltale signs of a cometary break-up.
August 30, 2011
A powerful supernova explodes relatively near to Earth
A supernova which exploded on August 24 is getting brighter. Scientists believe that in about seven to 10 days, it will be visible from Earth with binoculars.
August 30, 2011
