Earth's has survived a near miss with an asteroid, after its closest fly-by in 200 years. Passing our planet by just a mere 350 miles, the 400-metre-wide rock was invisible to the naked eye.
The Hubble telescope celebrates its 20th anniversary this weekend. Over the years, NASA's first orbiting space telescope has filtered down stunning images of deep space and heightened scientists' understanding of the universe.
Astronomers have identified an intermediate class of black hole on the fringe of the galaxy ESO 243-249 with a mass 500 times greater than the sun. The discovery could help illuminate the existence of supermassive black holes.
The biggest black holes in the universe may be much larger than thought before, say two astronomers who discovered that the black hole at the heart of a nearby galaxy weighs in at 6.4 billion times the mass of the sun.
As part of the Year of Astronomy, which celebrates the 400th anniversary of Galileo's discovery of the telescope, observatories are encouraging people to come and observe the heavens.
NASA says it is on target to launch the space shuttle Atlantis on Monday afternoon from Cape Canaveral, with seven astronauts on board for a high-risk final mission to service the Hubble telescope.
French sky observation base Pic du Midi wants to celebrate the International Year of Astronomy by creating Europe's first "protected sky reserve". To achieve that, scientists must convince the surrounding towns to lessen their light pollution.
A group of scientists have made two major discoveries in the quest to find life in space by localizing a new exoplanet called "Gliese e", the smallest of its kind, and by realising that nearby "Gliese d" might be a candidate for supporting life.
This week on "Environment": A sustainable living fair in Paris, eco-friendly hairdressing in Sweden, and light pollution blocks star-gazing at the Paris Observatory. Watch the full show.
