The Hubble Space Telescope is a collaboration between ESA and NASA. It's a long-term, space-based observatory. The observations are carried out in visible, infrared and ultraviolet light. In many ways Hubble has revolutionized modern astronomy, by not only being an efficient tool for making new discoveries, but also by driving astronomical research in general.

The mission

The Universe is gloriously transparent to visible light over journeys lasting billions of years. However, in the last few microseconds before light arrives at telescope mirrors on Earth it must travel through our turbulent atmosphere and the fine cosmic details become blurred. It is this same atmospheric turbulence that makes the stars appear to twinkle on a dark night.

Putting a telescope in space is one way of evading this problem. As well as collecting visible light from its orbit high above the atmosphere, the Hubble Space Telescope also observes the infrared and ultraviolet wavelengths that are completely filtered out by the atmosphere.

The Hubble Space Telescope, a joint ESA and NASA project, has made some of the most dramatic discoveries in the history of astronomy. From its vantage point 600 km above the Earth, Hubble can detect light with 'eyes' 5 times sharper than the best ground-based telescopes and looks deep into space where some of the most profound mysteries are still buried in the mists of time.

The Phoenix Has Landed
After a nine-month, 423 million-mile flight, a tiny automated science laboratory touched down in the early hours of Sunday on the frozen desert around the north pole of Mars, ready to begin the search for water and assess whether there is, or ever has been, life on the Red Planet. Thirty-two years since Viking Explorer first landed under a salmon-coloured sky, the world has again been astonished by the spectacular pictures sent back from a silent valley floor in this dry, ghostly world. Scientists at the Nasa control centre were ecstatic. Not only had the Phoenix spacecraft made a perfect landing after a series of failures; but its sophisticated technology is now ready to shed light on one of mankind's oldest questions: does life exist only on Earth?
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Hubblecast 16: Galaxies gone wild!
One of the big mysteries in astronomy is how galaxies grow and evolve over time. Collisions between galaxies are thought to be key events that shape their development. A stunning collection of 59 new images of colliding galaxies has been released to mark the 18th anniversary of the NASA/ESA Hubble Space Telescope. They give us a unique insight into how galaxies collide to form larger galaxies.
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Hubblecast 1
The NASA/ESA Hubble Space Telescope, in collaboration with several other ground- and space-based telescopes, has captured a galaxy being ripped apart by a galaxy cluster's gravitational field and harsh environment. The finding sheds light on the mysterious process by which gas-rich spiral-shaped galaxies might evolve into gas-poor irregular- or elliptical-shaped galaxies over billions of years.
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Hubblecast 02: Galaxy bars and supermassiv
Hubble has delivered an unrivalled snapshot of the nearby barred spiral galaxy NGC 1672. This remarkable image provides a high-definition view of the galaxy's large bar, its fields of star-forming clouds and its dark bands of interstellar dust.
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Hubblecast 03: Hubble 17th anniversary - Car
The NASA/ESA Hubble Space Telescope celebrates its 17th birthday with one of the largest panoramic images ever taken. The violent stellar fireworks of the Carina Nebula.
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