Feb. 8, 2013
The planet Mercury is about to make its best apparition of the year for backyard sky watchers. Look west at sunset for a piercing pink planet surrounded by twilight blue.
Feb. 6, 2013
A comet falling in from the distant reaches of the solar system could become a naked-eye object in early March. This is Comet Pan-STARRS's first visit to the inner solar system, so surprises are possible as its virgin ices are exposed to intense solar heating for the first time.
Jan. 28, 2013
On Feb. 15th an asteroid about half the size of a football field will fly past Earth closer than many man-made satellites. Since regular sky surveys began in the 1990s, astronomers have never seen an object so big come so close to our planet.
Jan. 18, 2013
Astronomers are keeping a close eye on newly-discovered Comet ISON, which could become visible in broad daylight later this year when it skims through the atmosphere of the sun.
Jan. 15, 2013
NASA scientists say 2012 was the ninth warmest of any year since 1880, continuing a long-term trend of rising global temperatures. With the exception of 1998, the nine warmest years in the 132-year record all have occurred since 2000, with 2010 and 2005 ranking as the hottest years on record.
Jan. 8, 2013
A new report issued by the National Research Council (NRC), "The Effects of Solar Variability on Earth's Climate," lays out some of the surprisingly complex ways that solar activity can make itself felt on our planet.
Dec. 21, 2012
The Moon and Jupiter are converging for a heavenly sky show on Christmas 2012. Got a telescope? Something is happening on Jupiter that makes it an extra-interesting target for backyard optics.
Dec. 20, 2012
This Friday, Dec. 21st, researchers will use NASA's Cassini spacecraft to observe a rare transit of Venus from the planet Saturn.
Dec. 17, 2012
NASA has named the site where two spacecraft hit the Moon on Dec. 17th in honor of the late astronaut Sally K. Ride, who was America's first woman in space.
Dec. 14, 2012
NASA is so sure the world won't come to an end on Dec. 21, 2012, they have already released this news item for the day after.