Sunday: March 16, 2003   0001 GMT NASA's Odyssey marks one year in orbit around Mars NASA's Mars Odyssey spacecraft has transformed the way scientists are looking at the red planet. "In just one year, Mars Odyssey has fundamentally changed our understanding of the nature of the materials on and below the surface of Mars," the project scientist says.    FULL STORY Video coverage for subscribers only:    VIDEO: MARS ODYSSEY MISSION UPDATE BRIEFING QT    SUBSCRIBE NOW Saturday: March 15, 2003   0110 GMT Readdy says 'no rationale' for spy satellite inspection William Readdy, associate administrator for spaceflight and a former shuttle commander, told the Columbia Accident Investigation Board he did not consider asking for a spy satellite inspection of Columbia's left wing during the doomed ship's mission because the agency had already concluded the shuttle could land safely.    FULL STORY See more coverage here:       Columbia timeline updated The following timeline was compiled by William Harwood, CBS News, from telemetry data (through revision 15 of NASA's internal timeline) and transcriptions of the NASA-Select commentary, mission control audio loops and portions of an in-cabin video recovered after the accident. The relevant data sources were released by the Columbia Accident Investigation Board.    SEE THE TIMELINE - Updated Friday Friday: March 14, 2003   0738 GMT Debris may strengthen breach scenario Investigators have recovered debris from the shuttle Columbia that appears to support the increasingly held belief that the doomed ship's left landing gear door remained in place as a plume of super-heated air entering through a breach near the leading edge of the left wing wreaked havoc inside the wheel well.    FULL STORY Chandra image reveals supernova origin NASA's Chandra X-ray Observatory image of the supernova remnant DEM L71 reveals a hot inner cloud of glowing iron and silicon surrounded by an outer blast wave. Data from the Chandra observation show that the central ten-million-degree Celsius cloud is the remains of a supernova explosion that destroyed a white dwarf star.    FULL STORY Thursday: March 13, 2003   0424 GMT Hubble discovers an evaporating planet For the first time, astronomers using NASA's Hubble Space Telescope have observed the atmosphere of an extrasolar planet evaporating off into space. Much of the planet may eventually disappear, leaving only a dense core. The planet is a type of extrasolar planet known as a "hot Jupiter." These giant gaseous planets orbit their parent stars very closely, drawn to them like moths to a flame.    FULL STORY Virtual observatory demo produces surprise discovery A new approach to finding undiscovered objects buried in immense astronomical databases has produced an early and unexpected payoff: a new instance of a hard-to-find type of star known as a brown dwarf.    FULL STORY Wednesday: March 12, 2003   0538 GMT Board studies wing edge, wind shear, foam repair The Columbia Accident Investigation Board today showed video of Columbia's launching that indicates foam debris falling away from the ship's external fuel tank slammed into the lower leading edge of the orbiter's left wing within a few feet of where it merged with the fuselage.    FULL STORY See more coverage here:       Video coverage for subscribers only:    VIDEO: TUESDAY'S INVESTIGATION BOARD NEWS CONFERENCE QT    SUBSCRIBE NOW Team talked foam impact analysis just after disaster NASA managers meeting 90 minutes after the Columbia disaster Feb. 1 discussed a re-analysis of the potential damage caused by foam debris slamming into the shuttle's left wing during launch. But senior managers decided the public would be told, during an initial press conference, that the debris hit "on the left wing was reviewed and not determined to be safety of flight issue."    FULL STORY Twin gamma-ray bursts provide several firsts Gamma-ray bursts are the most violent explosions in the Universe, but little is known about them. In recent years, several theories have been put forward to explain these elusive explosions, but the mystery still remains. Now, two recent bursts observed by astronomers at the Harvard-Smithsonian Center for Astrophysics provide unique data that can not only help test previous models but also help theorists come up with a better picture of what GRBs really are.    FULL STORY Tuesday: March 11, 2003   0510 GMT Delta 4 rocket successfully begins military service Born in the last decade by the Pentagon's call for a next-generation launcher of satellite cargos, Boeing's Delta 4 rocket did what it was designed to do Monday with the successful deployment of a $210 million military communications spacecraft. It was the Air Force's first Evolved Expendable Launch Vehicle mission.    FULL STORY    MISSION STATUS CENTER Email author 'frustrated' by misinterpretation Robert Daugherty, a senior engineer at NASA's Langley Research Center, said Monday his widely publicized emails outlining various dire scenarios for the shuttle Columbia's re-entry Feb. 1 were misinterpreted by the media.    FULL STORY Columbia timeline updated The following timeline was compiled by William Harwood, CBS News, from telemetry data and transcriptions of the NASA-Select commentary and mission control audio loops, both released by the Columbia Accident Investigation Board.    SEE THE TIMELINE - Updated Monday Monday: March 10, 2003   0112 GMT Data shows autopilot on through last transmission A computer alarm generated in the final two seconds of data from Columbia suggests one of the pilots' joystick hand controllers may have been briefly engaged, but the autopilot was never deactivated before contact was lost.    FULL STORY Final Great Observatory arrives at launch site NASA's Space Infrared Telescope Facility arrived in Florida last week to begin a month-long period of final preparations before being attached to its Delta 2 booster for launch in mid-April.    FULL STORY Rising storms revise story of Jupiter's stripes Pictures of Jupiter, taken by a NASA spacecraft on its way to Saturn, are flipping at least one long-standing notion about Jupiter upside down. Stripes dominate Jupiter's appearance. Darker "belts" alternate with lighter "zones." The Cassini mission shows that individual storm cells of upwelling bright-white clouds, too small to see from Earth, pop up almost without exception in the dark belts.    FULL STORY				News Archive March 3-9: Investigators begin public hearings into accident; Plume may have entered wheel well from within wing; Delta 4's first Air Force launch scrubbed; China reportedly planning lunar exploration; Team pegs brightness of history's brightest star. Feb. 24-March 2: Video shows Columbia crew unaware of impending disaster; Flight controllers downplay emails about Columbia; Europe pushes ahead with its new Vega rocket; Massive gas cloud around Jupiter revealed; Pioneer 10 sends last signal; Remnants of ancient stars found in Earth's atmosphere. Feb. 17-23: New data shows Columbia's state in final moments; Crew agrees manned space in 'very serious situation'; Melting snow could be cause of gullies on Mars; Missing mass exists as warm intergalactic fog; Where's the coolest place in the Universe? Feb. 10-16: Latest on Columbia investigation; Age of universe refined; Goodbye Ariane 4: Finale flight for workhorse rocket; Study shows how water may have flowed on Mars. More news  See our weekly archive of space news. The ultimate Apollo 11 DVD This exceptional chronicle of the historic Apollo 11 lunar landing mission features new digital transfers of film and television coverage unmatched by any other.  U.S. STORE  U.K. WORLDWIDE STORE Contact us If you have a comment or question for Spaceflight Now, just send us an e-mail.