Category: esa

Martian North Pole ESA / G. Neukum (Freie…

Martian North Pole

ESA / G. Neukum (Freie Universitaet, Berlin) / Bill Dunford

Cygnus Spacecraft Approaches Space Station i…

Cygnus Spacecraft Approaches Space Station in the Sunset

Image Credit: ESA/NASA

Centaurus A or NGC 5128 is a galaxy in the constellation of…

Centaurus A or NGC 5128 is a galaxy in the constellation of Centaurus.

The center of the galaxy contains a supermassive black hole with a mass equivalent to 55 million solar masses, which ejects a relativistic jet that is responsible for emissions in the X-ray and radio wavelengths. By taking radio observations of the jet separated by a decade, astronomers have determined that the inner parts of the jet are moving at about half of the speed of light. X-rays are produced farther out as the jet collides with surrounding gases resulting in the creation of highly energetic particles. The X-ray jets of Centaurus A are thousands of light-years long, while the radio jets are over a million light-years long

Image credit: ESO/ESA/NASA & Hubble   

ESA to Develop Gravitational Wave Space Mission with NASA…

ESA to Develop Gravitational Wave Space Mission with NASA Support

ESA (the European Space Agency) has selected the Laser Interferometer Space Antenna (LISA) for its third large-class mission in the agency’s Cosmic Vision science program. The three-spacecraft constellation is designed to study gravitational waves in space and is a concept long studied by both ESA and NASA.

ESA’s Science Program Committee announced the selection at a meeting on June 20. The mission will now be designed, budgeted and proposed for adoption before construction begins. LISA is expected to launch in 2034. NASA will be a partner with ESA in the design, development, operations and data analysis of the mission.

LISA consists of three spacecraft separated by 1.6 million miles (2.5 million kilometers) in a triangular formation that follows Earth in its orbit around the sun. Each spacecraft carries test masses that are shielded in such a way that the only force they respond to is gravity. Lasers measure the distances to test masses in all three spacecraft. Tiny changes in the lengths of each two-spacecraft arm signals the passage of gravitational waves through the formation.

Animation: ESA | NASA Goddard

Read more at: NASA

Four of Saturn’s Moons: Enceladus, Dione, Titan and…

Four of Saturn’s Moons: Enceladus, Dione, Titan and Mimas

Credit: NASA, ESA (STScI/AURA) by: Stuart Rankin

Sh2-106 is an emission nebula and a star formation region in…

Sh2-106 is an emission nebula and a star formation region in the constellation Cygnus.

Credit: NASA/ESA & Hubble

Baltic swirls by European Space Agency on Flickr.

Baltic swirls by European Space Agency on Flickr.