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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
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
Kepler catches a supernova shockwave
The planet-hunting Kepler spacecraft caught the earliest minutes of 2 exploding stars and, for the first time, the flash of supernova shockwave in visible light.
March 23, 2016
Dramatic circular outburst from sun
Video of a circular solar outburst observed last week by NASA's Solar Dynamics Observatory.
March 22, 2016
Best view yet inside Mars
Scientists have used fluctuations in the orbits of 3 spacecraft to map Mars' gravity. Thanks to this gravity map, it now seems likely that Mars has a molten core.
March 21, 2016
Getting to know Pluto
After last summer's Pluto flyby, the New Horizons spacecraft started sending data to Earth – at 2 kilobits per second. What scientists have learned so far from that rich, slow cache.
March 21, 2016
Small asteroid detected 4 days after passing as close as satellites
On March 15, astronomers detected an asteroid that had passed closest to Earth on March 11, sweeping in at about the distance of our geostationary satellites.
March 18, 2016
Astronomers see black hole raging red
Astronomers have observed violent red flashes, lasting just fractions of a second, during one of the brightest black hole outbursts in recent years.
March 18, 2016
Unexpected changes in Ceres’ bright spots
Astronomers using a telescope in Chile have seen unexpected daily changes on Ceres' famous bright spots, suggesting they change under the influence of sunlight.
March 16, 2016
