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Could our sun emit killer superflare?
Solar eruptions from our sun are nothing compared to eruptions from some other stars - so-called 'superflares'. Two scientists say our sun could also be a superflare star.
March 27, 2016
This is the earliest Easter until 2035
There are 35 dates on which Easter can take place. There won't be another one as early as today's Easter Sunday until 2035.
March 27, 2016
Moon, Saturn, Mars on March 27-28
Mars and Saturn are about to be at their best. Learn to recognize them as the moon sweeps past.
March 27, 2016
Closest comet in 246 years via radar
Record-breakingly close flybys of two comets earlier this week. Radar images of one, the closest comet in 246 years. Will the other be visible to the eye?
March 26, 2016
Moon and Empire State Building
A distant view of an iconic building, with the moon behind it.
March 26, 2016
Video of closest comet in 246 years
It's small, but, because it's so close to us, it appears to be moving very fast across our sky. Image and video by EarthSky community member Greg Hogan.
March 25, 2016
Extinctions without a fossil trace?
Many species now going extinct might vanish without a fossil trace, suggests a new study.
March 25, 2016
Solar storms ignite Jupiter’s auroras
For the first time, Jupiter’s auroras have been studied in X-ray light when a giant solar storm arrived at the planet.
March 24, 2016
Moon’s tilt has changed over time
Did the 'man in the moon' look different from ancient Earth? Yes, according to new research showing that the moon has undergone what's called True Polar Wander.
March 24, 2016
Moon and star Spica on March 24
People around the world will see a full-looking waning gibbous moon in the vicinity of this star, which is the brightest light in the constellation Virgo.
March 24, 2016
