The Orlando Sentinel from Orlando, Florida • Page 6

A-6 The Orlando Sentinel, Monday, May 20, 1996 NASA's gamma ray observatory discovers spectacular flare tvid ipts nf thp newlv detecU celerators. The jets of the newly detected shnttlp the ComDton Observatory has de The discoverv was renorted May 1 at a CnmDton Gamma Rav Observatory said The flare generated the blazars act like cosmic accelerators. "Given these are 400 million light years away, it's a clue to some very exotic process that's taking place," said Trevor Weekes, a Smithsonian astrophysicist. "It takes all man's ingenuity to build a particle accelerator at Fermilab or Stanford, but it's quite commonplace in nature to produce these jets." Scientists characterized the new class of blazar after seeing three examples with a technique that combines arrays of mirrors and light detectors. tected 50 blazars.

At the same meeting, scientists from the Smithsonian Institution's ground-based Whipple Observatory in southern Arizona announced they had detected three examples of a new, highly energetic class of blazar. The Smithsonian team said such blazars emit gamma rays 1,000 times more energetic than those detected by orbiting spacecraft like Compton. On Earth, the only way to see such high-energy gamma rays is by creating them with the most powerful particle ac meeting of the High Energy Astrophysics Division of the American Astronomical Society in San Diego, where scientists announced several new gamma ray findings. It has been submitted for publication in the Astrophysical Journal. PKS 1622-297 is a type of quasar called a blazar.

It's a black hole at the core of a distant galaxy that captures gas and material from stars, heats it and releases X-rays, gamma rays and jets of material toward Earth at nearly the speed of light. Since its 1991 launch aboard a space the 150-minute flare turned the quasar known as PKS 1622-297 into the brightest gamma ray source in the sky for several days last summer. "We don't know exactly what it is, that's why it's interesting," said John Mattox, a visiting scientist at the University of Maryland astronomy department. Gamma rays are extremely high-frequency radiation at wavelengths shorter than X-rays. Quasars are massive starlike objects that are bright emitters of light and radio waves.

brightest gamma ray source for several days last summer. ASSOCIATED PRESS LOS ANGELES Scientists have discovered a spectacular flare from a quasar 10 billion light years away that produced 100 billion times more gamma ray energy than is found in our galaxy. Scientists using NASA's orbiting Soda study to look at how liquids mix would be the antenna burning up in the atmosphere, and NASA officials didn't have a timetable for when and where that could be seen. If the antenna inflates to the right shape, it could lead to the development of lightweight inflatable space structures that could save a lot of fuel and money in the future, NASA officials said. If today's experiment works, inflatable space probes, radars, telescopes and antennas could follow.

On Wednesday, Endeavour will release a special mini-satellite to study a SHUTTLE from A-1 The key word for Endeavour on this 10-day mission is new. "A couple of things we have aboard are going to be real steps ahead," said Greg Reck, NASA deputy associate administrator, 11 minutes after launch. "That antenna could start a whole new generation of space structures." Reck said 90 percent of Endeavour's 20 experiments focus on new technologies in space. The most graphic of the experiments begins today at 7:29 a.m. when as J' (ill Reck said NASA needs to know how liquids mix for all sorts of reasons, not just soda-sipping.

Coke paid for the machine; NASA paid to rent space in a group of privately owned lockers for the Coke experiment to fly. The 6:30 a.m. launch was nearly flawless, with the only problem occurring a few minutes into the flight when the cooling system for one of three auxiliary power units, which supply power to the hydraulic systems for landing, froze up. This minor problem has cropped up in the past, said launch integration manager Loren Shriver, and will most likely thaw on its own before landing, scheduled for May 29 at 7:07 a.m. Endeavour blasts off from Kennedy Space Center on Sunday morning with a dazzling light show.

Powered by 3 updated main engines, a 1st for NASA, the shuttle rose with the sun. 'What a Endeavour Commander John Casper radioed to Earth. BED HUBERTHE ORLANDO SENTINEL new and cheaper way to control the position of satellites. Instead of fuel to control the satellite's position, this satellite repositions it-s 1 using aerodynamics tronauts release a box-shaped satellite, which has the inflatable antenna folded inside. At 9:38 p.m., the antenna will emerge like a jack-in-the-box and within five Just how thirsty are we? NASA's test of how liquids mix in space costs about $1.75 million.

So that 4-ounce taste of Coke runs about $19,400. Allergies are more than a runny nose and watery eyes. Cold like symptoms, Rashes, Headaches and Fatigue may and magnetic field. Endeavour will revisit the satellite three times. That will give Endeavour a record four rendezvous for this flight.

All mission long, astronauts will cook up gallium arsenide crystals to try to make purer computer semiconductors. The six astronauts will also take 90 tastes of Coke, Diet Coke and orange Powerade in a test of how two liquids soda syrup and carbonated water mix in near-zero gravity. minutes inflate to a precise 46-foot-wide antenna dish attached to the satellite by three 90-foot-long inflatable struts. With the shuttle 400 feet away in case the inflatable antenna pops like a previous inflated target had astronauts will photograph the antenna. At 11:13 a.m., the antenna will be jettisoned and in about seven hours it will burn up in Earth's atmosphere.

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