Image: Lisa Pathfinder ready for launch

Final preparations are under way at Europe's Spaceport in Kourou, French Guiana, for the launch of LISA Pathfinder, ESA's technology demonstrator that will pave the way for detecting gravitational waves from space. Liftoff ...

Image: LISA Pathfinder launch sequence

Scheduled for launch in late 2015, ESA's LISA Pathfinder will test key technologies for space-based observation of gravitational waves – ripples in the fabric of spacetime that are predicted by Albert Einstein's general ...

NASA's Mars Odyssey orbiter watches comet fly near

The longest-lived robot ever sent to Mars came through its latest challenge in good health, reporting home on schedule after sheltering behind Mars from possible comet dust.

Europe's star-hunter Gaia enters orbit

A billion-dollar star-hunting telescope slotted into its operational orbit Wednesday prior to harvesting data for the most detailed map yet of the Milky Way, the European Space Agency (ESA) said.

ESA's Cluster satellites in closest-ever 'dance in space'

(Phys.org) —Since 2000, the four identical satellites of the Cluster quartet have been probing Earth's magnetosphere in three dimensions. This week, two of them made their closest-ever approach, just 4 km, enabling valuable ...

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