This morning (Sept. 23) at 3:49 a.m. EDT (0749 GMT) marked the official celestial beginning of autumn in the Northern Hemisphere.
To gain a fuller understanding of Falcon Heavy's caliber and the ambitions behind the SpaceX launch, it is worthwhile to look at the numbers.
A new 360-degree simulation that uses data from NASA's Chandra X-Ray Observatory is helping astronomers better understand more than 22 stellar giants found at the center of the Milky Way galaxy.
Space and weather agencies are sending data to the National Hurricane Center to issue warnings and forecasts about Irma's potential for destruction in the Caribbean Sea.
NASA is aiding the humanitarian response to Tropical Storm Harvey by surveying the storm's impact from above.
Eruptions from one of the most active volcanic regions in the world sent plumes of ash and steam into the sky this week, as captured in a spectacular image by an Earth-monitoring satellite.
On the two-year anniversary of the New Horizons probe's flyby of Pluto, mission scientists unveiled two detailed global maps of the dwarf planet and its largest moon, Charon.
A NASA sounding rocket launched early this morning and lit up the skies over the U.S. East Coast with colorful clouds, ringing in an early July Fourth celebration.
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