Every bit of weight on an aircraft increases the fuel, emissions and money required to put it in the air.
Fires were spotted in Mexico, Guatemala and Belize.
Around Earth's equator, bright swaths of color known as airglow, can appear hovering at about 50 to 300 miles above…
As a convention for public release, Cassini images of Saturn are generally oriented so that Saturn appears north up, but…
Expedition 47 Flight Engineer Tim Peake of ESA took this striking photograph of the moon from his vantage point aboard…
A layer of charged particles, called the ionosphere, surrounds Earth, extending from about 50 to 360 miles above the surface…
APOD Science APOD APOD: 2016 April 4… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD…
Weighing 405 lbs. (184 kg), this 35-inch (89-cm) pressurized stainless steel sphere measured the density, composition, pressure and temperature of…
APOD Science APOD APOD: 2016 April 3 – Close… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…
APOD Science APOD APOD: 2016 April 2 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …
