satellite

How Many Satellites are in Space?

by Fraser Cain October 24, 2013

The space age began on October 4, 1957 with the launch of the first artificial satellite, Sputnik 1. This tiny spacecraft lasted only three months in orbit, finally burning up in the Earth’s atmosphere. Fraser Cain on Google+

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30 Years of City Growth Seen From Space

by Jason Major July 29, 2013

Since the launch of its first satellite in 1972, the eight NASA/USGS Landsat satellites have made the longest continuous observations of Earth’s surface, providing invaluable data for research in agriculture, geology, forestry, regional planning, education, mapping, global change research, as well as important emergency response and disaster relief information. In addition, having such a long […]

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Could Cassini See You On “The Day The Earth Smiled?”

by Jason Major July 24, 2013

So along with the rest of the world, you smiled. You waved. You went outside on July 19, wherever you were, and looked upwards and out into the solar system knowing that our robotic representative Cassini would be capturing a few pixels’ worth of photons bouncing off our planet when they eventually reached Saturn, 900 […]

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A Heat Wave So Big You Can See It From Space

by Jason Major July 16, 2013

Hot enough for ya? If you live anywhere on the eastern half of the United States (like me) you’ve probably been sweating it out over the past several days in what certainly feels like the warmest week yet for the season. The cause of the oppressive weather? A large mid-level ridge centered over the Ohio Valley […]

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Did a Piece of Mir Really Land in Massachusetts?

by David Dickinson June 19, 2013

We love a good space debris mystery. Hey, who doesn’t, right?  Regular readers of Universe Today know that it’s a shooting gallery out there, from meteor fireballs caught on dashboard cams to rogue space junk reentries lighting up our skies.  David Dickinson on Google+

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