Related topics: earth

Scientists planning now for asteroid flyby a decade away

On April 13, 2029, a speck of light will streak across the sky, getting brighter and faster. At one point it will travel more than the width of the full Moon within a minute and it will get as bright as the stars in the Little ...

Three Earth Explorer ideas selected

As part of ESA's continuing commitment to realise cutting-edge satellite missions to advance scientific understanding of our planet and to show how new technologies can be used in space, three new ideas have been chosen to ...

Observatories team up to reveal rare double asteroid

New observations by three of the world's largest radio telescopes have revealed that an asteroid discovered last year is actually two objects, each about 3,000 feet (900 meters) in size, orbiting each other.

Radar satellites able to measure water stress in trees

Radar technology in space can be used to measure how 'thirsty' plants and crops are. This could play a key role in improving our understanding of how ecosystems and the water and carbon cycles interrelate. In theory, we have ...

Giant telescopes pair up to image near-Earth asteroid (w/ video)

(Phys.org) —NASA scientists using Earth-based radar have produced sharp views of a recently discovered asteroid as it slid silently past our planet. Captured on June 8, 2014, the new views of the object designated "2014 ...

Green bank telescope makes arecibo connection to image asteroid

Like a pinch-hitter driving in the game-winning run, the National Science Foundation's Green Bank Telescope (GBT) stepped up to the plate to help astronomers at the Arecibo Observatory study and image a rapidly fleeing asteroid ...

First radar vision for Copernicus

Launched on 3 April, ESA's Sentinel-1A satellite has already delivered its first radar images of Earth. They offer a tantalising glimpse of the kind of operational imagery that this new mission will provide for Europe's ambitious ...

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