Endeavour Comes Home

From: NASA



With landing gear down, space shuttle Endeavour approaches the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida after 14 days in space, completing the 5.7-million-mile STS-130 mission. Endeavour landed at 10:20 p.m. EST on Sunday, Feb. 21, after delivering the new Tranquility node and its seven-window cupola to the International Space Station. Returning to Earth aboard Endeavour are Commander George Zamka; Pilot Terry Virts; and Mission Specialists Robert Behnken, Nicholas Patrick, Kathryn Hire and Stephen Robinson.

Credit: NASA

On Launch Pad 39A

On Launch Pad 39A

The space shuttle Endeavour is seen after the rotating service structure is rolled back on Saturday, Feb. 6, 2010 at Launch Pad 39A of the NASA Kennedy Space Center in Cape Canaveral, Florida. Endeavour and the crew members of the STS-130 mission are set to launch on Sunday at 4:39 a.m. EST.

Image Credit: NASA/Bill Ingalls

Andromeda in Ultraviolet

From NASA:

In a break from its usual task of searching for distant cosmic explosions, NASA's Swift satellite acquired the highest-resolution view of a neighboring spiral galaxy ever attained in the ultraviolet. The galaxy, known as M31 in the constellation Andromeda, is the largest and closest spiral galaxy to our own. This mosaic of M31 merges 330 individual images taken by Swift's Ultraviolet/Optical Telescope. The image shows a region 200,000 light-years wide and 100,000 light-years high (100 arcminutes by 50 arcminutes).

Image Credit: NASA/Swift/Stefan Immler (GSFC) and Erin Grand (UMCP)

Black Holes Go 'Mano a Mano'

From NASA:

This image of NGC 6240 contains new X-ray data from Chandra (shown in red, orange, and yellow) that has been combined with an optical image from the Hubble Space Telescope originally released in 2008. In 2002, Chandra data led to the discovery of two merging black holes, which are a mere 3,000 light years apart. They are seen as the bright point-like sources in the middle of the image. Scientists think these black holes are in such close proximity because they are in the midst of spiraling toward each other -- a process that began about 30 million years ago. It is estimated that they holes will eventually drift together and merge into a larger black hole some tens or hundreds of millions of years from now.

Finding and studying merging black holes has become a very active field of research in astrophysics. Since 2002, there has been intense interest in follow-up observations of NGC 6240, as well as a search for similar systems. Understanding what happens when these exotic objects interact with one another remains an intriguing question for scientists. The formation of multiple systems of supermassive black holes should be common in the universe, since many galaxies undergo collisions and mergers with other galaxies, most of which contain supermassive black holes.

It is thought that pairs of massive black holes can explain some of the unusual behavior seen by rapidly growing supermassive black holes, such as the distortion and bending seen in the powerful jets they produce. Also, pairs of massive black holes in the process of merging are expected to be the most powerful sources of gravitational waves in the Universe.

Image Credits: X-ray: NASA/CXC/MIT/C.Canizares, M.Nowak; Optical: NASA/STScI

The Heart of Darkness

From NASA:

Some of the coldest and darkest dust in space shines brightly in this infrared image from the Herschel Observatory, a European Space Agency mission with important participation from NASA. The image is a composite of light captured simultaneously by two of Herschel's three instruments -- the photodetector array camera and spectrometer with its spectral and photometric imaging receiver.

The image reveals a cold and turbulent region where material is just beginning to condense into new stars. It is located in the plane of our Milky Way Galaxy, 60 degrees from the center. Blue shows warmer material, red the coolest, while green represents intermediate temperatures. The red filaments are made up of the coldest material pictured here -- material that is slightly warmer than the coldest temperature theoretically attainable in the universe.

Image Credit: ESA/NASA/JPL-Caltech

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On the Tarmac

Technicians clad in protective suits check for any hazardous gases emanating from space shuttle Discovery moments after it rolled to a stop on the main runway at Edwards Air Force Base on Sept. 11. The checks are required before the crews move in for recovery operations.

Image Credit: NASA/Brian Soukup

100,000 Stars

Omega Centauri

NASA's Hubble Space Telescope snapped this panoramic view of a colorful assortment of 100,000 stars residing in the crowded core of a giant star cluster. This is one of the first images taken by the new Wide Field Camera 3 that was installed aboard Hubble in May 2009 during Servicing Mission 4, which can snap sharp images over a broad range of wavelengths.

Image Credit: NASA

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