After several months of downtime after Hurricane Maria blew through, the Arecibo Observatory Planetary Radar has returned to normal operation, providing the highest-resolution images to date of near-Earth asteroid 3200 Phaethon ...
Space Exploration
Dec 22, 2017
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495
Florence, an asteroid that came within 4.4 million miles (7.0 million kilometers) of Earth last week, has two small moons, according to radar images obtained by NASA.
Space Exploration
Sep 6, 2017
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199
Radar images of asteroid 2017 BQ6 were obtained on Feb. 6 and 7 with NASA's 70-meter (230-foot) antenna at the Goldstone Deep Space Communications Complex in California. They reveal an irregular, angular-appearing asteroid ...
Space Exploration
Feb 13, 2017
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76
Astronomers were watching when comet P/2016 BA14 flew past Earth on March 22. At the time of its closest approach, the comet was about 2.2 million miles (3.5 million kilometers) away, making it the third closest comet flyby ...
Space Exploration
Mar 25, 2016
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92
Asteroid 2003 SD220 safely flew past Earth on Dec. 24 at a distance of 6.8 million miles (11 million kilometers). Scientists at NASA's Jet Propulsion Laboratory in Pasadena, California, have generated the highest-resolution ...
Space Exploration
Dec 28, 2015
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907
Asteroid 1998 WT24 safely flew past Earth on Dec. 11 at a distance of about 2.6 million miles (4.2 million kilometers, 11 lunar distances). During its flyby, NASA scientists used the 230-foot (70-meter) DSS-14 antenna at ...
Space Exploration
Dec 18, 2015
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38
By comparing radar images of areas on Titan to those of Earth's deserts, scientists have identified two distinct types of sand dune on Saturn's largest moon – and discovered eroded structures that indicate that Titan's ...
Space Exploration
Nov 6, 2015
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111
The highest-resolution radar images of asteroid 2015 TB145's safe flyby of Earth have been processed and yield new information about its surface features.
Space Exploration
Nov 4, 2015
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524
Spencer Kent stands nervously in front of Team D.R.A.D.I.S.' booth at Rice University's annual Engineering Design Showcase. Judging begins in about 10 minutes, and his teammate Galen Schmidt is frantically typing computer ...
Engineering
May 4, 2015
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4746
During 10 years of discovery, NASA's Cassini spacecraft has pulled back the smoggy veil that obscures the surface of Titan, Saturn's largest moon. Cassini's radar instrument has mapped almost half of the giant moon's surface; ...
Space Exploration
Feb 14, 2015
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