Sunday: January 27, 2002   0001 GMT Black hole mystery mimicked by supercomputer Advanced supercomputers have simulated extremely powerful energy jets squirted out by black holes, the most exotic and powerful objects in the Universe. The research helps unlock the mysteries of rotating black holes and confirms that their rotation actually produces power output.    FULL STORY Chandra snaps image of Galactic Center's radio arc Chandra observations of a region of the Galactic Center have found an X-ray filament and cloud about 40 light years across. These X-ray features are associated with large filamentary and shell-like structures that are bright sources of radio waves.    FULL STORY Chandra telescope designer wins 2002 Rossi Prize Leon Van Speybroeck, who led the effort to design and make the X-ray mirrors for NASA's premier X-ray observatory, the Chandra X-ray Observatory, has been recognized for a career of stellar achievements in designing precision X-ray optics.    FULL STORY Saturday: January 26, 2002   0237 GMT Extraordinary new image of famous Horsehead Nebula A new, high-resolution color image of one of the most photographed celestial objects, the famous "Horsehead Nebula", has been produced from the European Southern Observatory. The photo shows the famous the nebula, which is situated in the Orion molecular cloud complex.    FULL STORY International space station spacewalk completed Expedition Four commander Yuri Onufrienko and flight engineer Dan Bursch conducted a successful six-hour spacewalk Friday to install several items to the exterior of the international space station's Russian segment.    MISSION STATUS CENTER - updates Aerojet delivers X-38 Deorbit Propulsion Stage After three years of design, engineering and assembly, Aerojet on Friday delivered the Deorbit Propulsion Stage (DPS) for the X-38, NASA's full-scale prototype for the International Space Station emergency Crew Return Vehicle.    FULL STORY Friday: January 25, 2002   0129 GMT International space station spacewalk on tap today Expedition Four commander Yuri Onufrienko and flight engineer Dan Bursch will conduct a spacewalk today to install several items to the exterior of the international space station's Russian segment. The six-hour excursion is expected to begin at 10:35 a.m. EST.    MISSION STATUS CENTER Video coverage for subscribers only:    VIDEO: 12-MINUTE PREVIEW OF THE SPACEWALK QT or RV    MORE: COMPLETE SFN+ VIDEO INDEX Space station scientists expand colloid research Ground-based scientists expanded their colloid research aboard the international space station during the past week from study of the fine particles in colloids to gel structures built with these particles. The gel structure allows scientists to study basic properties such as formation and aging that may be useful in ground-based manufacturing.    FULL STORY Shuttle Columbia's move to launch pad delayed again The rollout of space shuttle Columbia to its launch pad has been delayed until the weekend. Wednesday's planned move was scrubbed because of a steering problem with the massive transporter used to carry shuttles from the Vehicle Assembly Building to the launch pads.    MISSION STATUS CENTER More mission coverage here:       U.S. ecology altered by fertilizers, acid rain A NASA-funded study of ancient and unpolluted South American forests promises to upend longstanding beliefs about ecosystems and the effects of pollution in the Northern Hemisphere.    FULL STORY Thursday: January 24, 2002   0454 GMT Ariane overcomes computer abort, lofts Indian satellite A satellite designed to enhance communications across India and replace two aging craft was successfully launched into Earth orbit Wednesday by a European Ariane 4 rocket following a bumpy countdown that featured an abort just seconds before ignition.    FULL STORY    MISSION STATUS CENTER Thruster problem delays weather satellite launch A U.S. military weather satellite that was seconds away from blastoff one year ago this week has remained Earth-bound due to a variety of technical problems, the latest of which technicians recently uncovered as they prepared to fuel the spacecraft for a February 1 launch.    FULL STORY Transporter trouble halts Columbia's move to pad Wednesday's planned rollout of Columbia was scrubbed because of a steering problem with the massive transporter used to carry space shuttles from the Vehicle Assembly Building to the seaside launch pads at Kennedy Space Center.    MISSION STATUS CENTER    FULL MISSION PREVIEW More mission coverage here:       Humans' internal clock not ready for Mars time The human internal clock fails to adapt to non-24-hour days and that fact takes its toll on astronauts, international travelers and shift workers. Adapting to these different day lengths is critical to mission success, a study funded in part by NASA concludes.    FULL STORY PROBA promises wealth of environmental data ESA's new micro-satellite PROBA has captured its first test images of the Earth's surface using its small but powerful optical instrument, just two months after its launch from the Indian equator.    FULL STORY Wednesday: January 23, 2002   0517 GMT U.S. Topography data from shuttle mission unveiled Displaying spectacular new 3-D images and animations of California from space, scientists at NASA's Jet Propulsion Laboratory on Tuesday announced the release of high-resolution topographic data of the continental United States gathered during the February 2000 Shuttle Radar Topography Mission.    FULL STORY NASA balloon makes record-breaking flight Larger than a football field and flying near the edge of space, a NASA scientific balloon has set a new flight record of almost 32 days after completing two orbits around the South Pole. The balloon carried an experiment designed to search for the origin of cosmic rays.    FULL STORY First Arianespace launch of 2002 poised to fly Arianespace is counting down the final hours for today's launch of an Ariane 4 rocket with an Indian communications satellite onboard. Liftoff is scheduled for 2253 GMT (5:53 p.m. EST) from the Guiana Space Center in French Guiana on South America's northeast coast.    MISSION STATUS CENTER Tuesday: January 22, 2002   0200 GMT Gemini Observatory celebrates historic first The National Science Foundation joined its international partners last week in dedicating Gemini South, the second of the two Gemini telescopes to become operational. From high atop remote mountains in Chile and Hawaii, the twin telescopes for the first time give astronomers access to the entire sky with state-of-the-art 8-meter instruments.    FULL STORY 'Local' gamma ray bursts may solve a mystery or two Although scientists have believed for some time that most gamma-ray bursts are very distant, a Goddard scientist has discovered 100 of them that are quite "local," within 325 million light years from Earth.    FULL STORY Monday: January 21, 2002   0225 GMT Robotic construction crew rolls up its sleeves The first construction workers on Mars may not need hardhats. NASA researchers have successfully demonstrated the first use of multiple rovers that work tightly in sync to perform tasks such as coordinated grasping, lifting and moving of an extended payload, while navigating through obstacles on natural terrain.    FULL STORY EO-1 gets mission extension The mission was to validate nine new breakthrough technologies in the unique environment of space -- technologies that will change the way spacecraft and Earth-viewing instruments are built and operated in the future. After a fully successful series of experiments and tests, NASA's going for more.    FULL STORY Europe's Ariane 4 rocket to launch Wednesday Arianespace plans to kick off its 2002 launch season on Wednesday evening with the flight of an Ariane 4 rocket carrying the Insat 3C satellite for the Indian space agency.    MISSION STATUS CENTER				A Year in Space Astronomy Now and Spaceflight Now present a 100-page, full-color special publication: 2001: a Year in Space. A stunning month-by-month pictorial record of the space events and discoveries during 2001. Available now from our store.  U.S. STORE  WORLDWIDE STORE Earlier news Jan. 14-20: Discoveries raise hopes, questions about life on Mars; Milstar satellite launched by Titan 4 in first space shot of 2002; Trouble sends Galileo into hibernation during Io flyby. Jan. 7-13: First steps in terrestrial planet formation observed?; Planet around the star Vega suggested in dust swirl; Mars Odyssey completes aerobraking. Dec. 31-Jan. 6: Moon of Uranus is demoted; Hubble snaps stunning view of globules in space; Sun erupts; New images of 'Pillars of Creation' in Eagle Nebula. More news  See our weekly archive of space news. Contact us If you have a comment or question for Spaceflight Now, just send us an e-mail. Hubble poster The Hubble Space Telescope's majestic view of the Eskimo Nebula. This spectacular poster is available now from the Astronomy Now Store.    MORE