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The peculiar galaxy Centaurus A as seen in longer infrared wavelengths and X-rays. Inner structural features seen in this image are helping scientists to understand the mechanisms and interactions within the galaxy, as are the jets seen extending over thousands of light years from the black hole believed to be at its heart. Newly discovered clouds co-aligned with the jets can also be seen in the infrared data, which are colored red and orange.

Time is running out for the galaxy NGC 3801, seen in this composite image combining light from across the spectrum, ranging from ultraviolet to radio. NASA's Galaxy Evolution Explorer and other instruments have helped catch the galaxy NGC 3801 in the act of destroying its cold, gaseous fuel for new stars. Astronomers believe this marks the beginning of its transition from a vigorous spiral galaxy to a quiescent elliptical galaxy whose star-forming days are long past.

Researchers have come up with a 3D map of the sky, which facilitates scientists to look into the time six billion years ago when dark energy became a dominant influence on the Universe's expansion.

Experts and officials gathered at the first Africa Forum on Science, Technology and Innovation in Nairobi, Kenya are seeking African solutions to African problems. Participants are calling for African governments to fund and promote research and development at home.

A surge of infrared radiation from nitric oxide molecules on March 8-10, 2012, signals the biggest upper-atmospheric heating event in seven years.

The “Planet under Pressure Conference” is considered a key event in the lead up to the United Nations Conference on Sustainable Development in Rio de Janeiro (Rio+20, Brazil, 20-22 June, 2012), with participants identifying concrete ways for society to tackle planetary challenges and provide a scientific contribution to the UN Conference.

This image of the far side of the lunar surface, with Earth in the background, was taken by the MoonKAM system board the Ebb spacecraft as part of the first image set taken from lunar orbit from March 15 - 18, 2012.

An improved version of NASA's popular "Eyes on the Earth" interactive virtual reality visualization with a host of new features is now available.

Bright Rays from Canuleia Crater
In this image from NASA's Dawn spacecraft, bright material extends out from the crater Canuleia on Vesta.