News tagged with 99942 apophis

Herschel intercepts asteroid Apophis

(Phys.org)—ESA's Herschel space observatory made new observations of asteroid Apophis as it approached Earth this weekend. The data shows the asteroid to be bigger than first estimated, and less reflective.

Jan 09, 2013
5 / 5 (8) 4 | with audio podcast

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Celestial flybys set to thrill

Astronomers are gearing up for thrills this year when Earth gets buzzed by two rogue asteroids and two comets, including a wanderer last seen by the forerunners of mankind.

Jan 06, 2013
4.3 / 5 (19) 5

Impact mitigation

The save-the-Earth rehearsal mission Don Quijote, commissioned by the European Space Agency, is planned to test the potential of a real life-or-death mission to deflect a mass-extinction-inducing asteroid from a colli ...

Aug 15, 2011
4.8 / 5 (10) 14

Asteroids: Treasures of the past and a threat to the future

If a large asteroid such as the recently identified 2004 VD17 – about 500 m in diameter with a mass of nearly 1000 million tonnes - collides with the Earth it could spell disaster for much of our planet. ...

Apr 03, 2006
4.6 / 5 (9) 0

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