Zapping away space junk
Planet Earth is surrounded. Thousands of tons of dangerous space debris circle in low orbit, threatening serious damage, even death, if any were to strike the International Space Station. A proposal by a ...
Ascent or no ascent? How hot material is stopped in the Earth's mantle
The largest magmatic events on Earth are caused by massive melting of ascending large volumes of hot material from the Earth's interior.
Hubble, the telescope that revolutionized our view of space
Hubble, the first telescope to revolutionize modern astronomy and change our view of the universe by offering glimpses of distant galaxies, marks its 25th year in space this week.
Scientists plan to cut insect pests down to size by turning their own hormones against them
Locusts are certainly not among the lazier creatures on earth. They can travel 130km a day in search of food. The insects can strip bare a field of crops in minutes as they move from one feast to the next ...
Electric solar wind sail could make bidirectional manned Mars flights economically feasible
The E-sail is a novel propellantless technology that was invented in Finland in 2006. The E-sail utilises long, charged tethers to convert natural solar wind momentum flux into spacecraft thrust.
Scientists create cheaper magnetic material for cars, wind turbines
Karl A. Gschneidner and fellow scientists at the U.S. Department of Energy's Ames Laboratory have created a new magnetic alloy that is an alternative to traditional rare-earth permanent magnets.
The 2011 Tohoku-Oki earthquake—felt from space
For the first time, a natural source of infrasonic waves of Earth has been measured directly from space—450 kilometers above the planet's surface. The source was the massive 2011 Tohoku-Oki earthquake in ...
Astronomers join forces to speed discovery of habitable worlds
UC Berkeley astronomers will lead one of 16 new projects funded by NASA to coordinate different exoplanet searches to more efficiently find habitable planets around other stars, and perhaps extraterrestrial ...
US astronaut launches geography quiz on Twitter
American astronaut Scott Kelly has launched a geography quiz on Twitter and will post a picture from the International Space Station each week so fans can guess his location.
NASA's ATLAS thermal testing: You're hot, then you're cold
Once in orbit, the Ice, Cloud and land Elevation Satellite-2 will go from basking in the heat of the sun to freezing in Earth's shadow every 90 minutes. And every second in that orbit, it will need to take ...
Arctic nations meet under threat of new Cold War
The thawing of the polar ice promises Arctic nations new opportunities to open ocean trade routes and offshore oil fields.