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Planetary Defence Archive

Planetary Defence

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First Light with ESA's Test-Bed Telescope at La Silla (zoom on Centaurus A)

First Light with ESA's Test-Bed Telescope at La Silla

Drone test of Hera mission asteroid radar

Debris, thought to be asteroid, was once rocket to the Moon

Challenge: Spot the asteroids

Hera and its asteroid target

Seeing asteroids in the dark

Asteroid experts catch final glimpse of Solar Orbiter

Cosmic caller goes out with a bang

The Teide Observatory – ESA’s wandering eye

Mitigation: Asteroid on collision course

Asteroid detected! Now what?

Gaia’s first asteroid discoveries

One step closer to the Flyeye network

Space rocks infographic: things that go bump in the night

Infographic: asteroid danger explained

Infographic: Flyeye telescopes to spot asteroids

Steady pointing

Light pathways through the Flyeye telescope

One telescope, 16 lenses

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