Category: Astronomy
30 October 1997
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ScienceNOW(Science - AAAS)
New Light on the Fate of the Universe
Two groups of astronomers have analyzed light from distant exploding stars to reach a preliminary verdict on the fate of the expanding universe. The longtime rivals have been working independently...
29 October 1997
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ScienceNOW(Science - AAAS)
How Hungry is a Black Hole?
X-rays from distant galaxies may reveal the appetites of giant black holes that lurk there. As x-ray astronomers report in the current issue of Astrophysical Journal Letters, the intensity of...
27 October 1997
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ScienceNOW(Science - AAAS)
Mars Pathfinder Nearing Its End
Pathfinder, the NASA spacecraft that landed on Mars on 4 July, appears to be in a coma, and unless radio contact is reestablished within 2 weeks, the mission must be...
24 October 1997
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ScienceNOW(Science - AAAS)
Fire Damages Gamma-Ray Observatory
Nearly one-third of a brand-new gamma-ray observatory in the Canary Islands was destroyed by a fire on 16 October. Because of the damage, the sensitivity will be cut in half...
23 October 1997
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ScienceNOW(Science - AAAS)
A Meteoric Career
Ernst Öpik, an Estonian astronomer whose wide-ranging work on meteors led to the development of heat shields for spacecraft, was born on this day in 1893. Öpik studied the erosion...
21 October 1997
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ScienceNOW(Science - AAAS)
Clinton Kills Asteroid Mission
WASHINGTON, D.C.--A small Pentagon mission to fire probes into several near-Earth asteroids has been shot down itself. President Bill Clinton last week vetoed the Clementine 2 program, part of the...
21 October 1997
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ScienceNOW(Science - AAAS)
Spiral Galaxy Smash-Up
WASHINGTON, D.C.--Astronomers are watching a violent collision of the two spiral galaxies from a ringside seat. Images taken by the Hubble Space Telescope of the Antennae galaxies--a pair of colliding...
16 October 1997
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ScienceNOW(Science - AAAS)
Stalking the Solar Wind
Astronomers have narrowed down the sources of the solar wind, the stream of particles that starts somewhere in the tangle of magnetic fields and turbulent gases near the sun's surface...
15 October 1997
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ScienceNOW(Science - AAAS)
Cassini Heads for Ring Road
The Cassini spacecraft successfully lifted off this morning from Cape Canaveral, beginning its 3.2-billion-kilometer trek to Saturn. After picking up speed by swinging by several planets, the craft--opposed by antinuclear...
7 October 1997
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ScienceNOW(Science - AAAS)
Theorists Oust Antimatter From the Cosmos
Despite the dreams of science fiction fans everywhere, no antimatter galaxies lurk in the far corners of the universe. So concludes a trio of theorists who calculated the energy that...
6 October 1997
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ScienceNOW(Science - AAAS)
India Loses New Communications Satellite
NEW DELHI--The Indian Space Research Organisation (ISRO) last night abandoned efforts to rescue its premiere communications satellite. On Friday the agency lost contact with the $100 million satellite, which had...
2 October 1997
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ScienceNOW(Science - AAAS)
Magnetic Lava Legacy on Mars?
Mars Global Surveyor, the NASA probe that went into orbit around the Red Planet 12 September, has detected magnetic anomalies dotting Mars's crust, scientists announced today at a press conference...
1 October 1997
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ScienceNOW(Science - AAAS)
Comet Catcher
The first comet to be discovered by telescope was spotted 150 years ago today by Maria Mitchell (1818-1889), the first well-known woman astronomer in the United States. While working as...
30 September 1997
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ScienceNOW(Science - AAAS)
India Launches Hefty Satellite
NEW DELHI--The Indian space program took a big step toward competing in the international arena yesterday with the successful launch of another remote-sensing satellite (IRS-1D) aboard its own Polar Satellite...
29 September 1997
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ScienceNOW(Science - AAAS)
Odd Visitor From the Oort Cloud
A 10-kilometer object that looks like an asteroid may have come from the Oort cloud, a spherical shell of frozen bodies far beyond the orbit of Pluto that is thought...
26 September 1997
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ScienceNOW(Science - AAAS)
Solitary Neutron Star Reveals Its True Colors
Astronomers have taken their first direct look at a lone neutron star in visible light. Because they are normally found paired with other, much brighter stars, which complicate interpretation of...
17 September 1997
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ScienceNOW(Science - AAAS)
A Twinkling Fireball
HUNTSVILLE, ALABAMA--Astronomers have sized up what appears to be a giant fireball, billions of light-years away, and clocked it expanding at near the speed of light. The findings, which will...
11 September 1997
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ScienceNOW(Science - AAAS)
A Light-Fingered Black Hole
Two astronomers in Germany may have gotten a look at the intimate surroundings of a giant black hole at the center of another galaxy, according to a report in yesterday's...
9 September 1997
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ScienceNOW(Science - AAAS)
Private Probe Proposed to Gather Asteroid Data
A small company unveiled plans today to launch the first private spacecraft to leave Earth's orbit, on a mission to visit a nearby asteroid. A team of University of California,...
8 September 1997
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ScienceNOW(Science - AAAS)
Rubble of a Galactic Smashup
Astronomers have discovered a lonely arc of debris that may be a remnant of a high-speed galactic collision. The arc of stars and gas, which seems unattached to any galaxy,...
5 September 1997
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ScienceNOW(Science - AAAS)
Quark Star Search
By monitoring the radio pulses that emanate from spinning neutron stars, astronomers might be able to watch them turning into something even more exotic--quark stars. So argues a team of...
4 September 1997
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ScienceNOW(Science - AAAS)
Saturn Mission Postponed
A rip in the insulation protecting part of the Cassini spacecraft is forcing NASA to postpone launch of the Saturn-bound mission from its original 6 October launch date. Agency officials...
29 August 1997
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ScienceNOW(Science - AAAS)
Rivers Under the Sun
WASHINGTON, D.C.--"Rivers" of solar material are flowing beneath the surface of the sun, researchers announced yesterday at a NASA press conference. Data from the Solar and Heliospheric Observatory (SOHO) spacecraft...
22 August 1997
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ScienceNOW(Science - AAAS)
Chile Ponies up for Telescope Project
Chile is on the brink of reclaiming its status as a full partner in a United States–led consortium to build twin, 8-meter telescopes in Hawaii and Chile. A holdup in...
19 August 1997
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ScienceNOW(Science - AAAS)
A Catalogue of Stars
Today is the birthday of John Flamsteed, an English astronomer born in 1646 who produced important star catalogues. As the first Astronomer Royal at the Royal Observatory in Greenwich, he...
15 August 1997
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ScienceNOW(Science - AAAS)
Are Small Comets Dampening the Atmosphere?
The controversial theory that fluffy, house-size comets are pummeling the outer reaches of the atmosphere enjoyed a boost last week when a satellite instrument detected signs of as much as...
12 August 1997
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ScienceNOW(Science - AAAS)
The Stuff Between Stars
At the turn of the century, astronomers wanted to know whether matter existed between the stars, and if so, whether it affected their readings of starlight. Otto Struve, a Russian-American...
12 August 1997
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ScienceNOW(Science - AAAS)
This Galaxy Has Good Teeth
A satellite instrument has detected fluoride molecules at the center of the Milky Way. The finding, to be published in the October issue of Astrophysical Journal Letters, provides the first...
8 August 1997
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ScienceNOW(Science - AAAS)
Flickers from a Far-Off Planet
A network of telescopes in the Southern Hemisphere has uncovered a strong candidate for a planet circling a star thousands of light years from Earth. The network, called PLANET* and...
4 August 1997
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ScienceNOW(Science - AAAS)
Preview of Supernova Fireworks
Supernova SN 1987A--a massive stellar blast that went off 167,000 light-years away--announced itself 10 years ago with a flash of incredibly bright light, but the display is continuing. Now astronomers...
28 July 1997
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ScienceNOW(Science - AAAS)
Help Map the Moon
Early rising sky watchers can help map the moon's edge with their camcorders. Tomorrow morning, beginning on the East Coast of the United States at about 5:30 a.m., the crescent...
15 July 1997
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ScienceNOW(Science - AAAS)
Robbing the Stellar Cradle
Many fecund galaxies that glow with the birth of stars also contain ravenous black holes at their core. Astronomers have long wondered about this curious cohabitation; now the Hubble Space...
11 July 1997
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ScienceNOW(Science - AAAS)
Comet Origin of Oceans All Wet?
BLOIS, FRANCE--Many planetary scientists have surmised that most of the water on Earth's surface could have originated in comets, which are made largely of ice and have hit Earth in...
9 July 1997
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ScienceNOW(Science - AAAS)
X-ray Vision Sees Mysterious Object
Astronomers have discovered a strange dark mass far away in the universe: what appears to be a huge cluster of galaxies that's almost completely undetectable, except for the x-rays it's...
7 July 1997
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ScienceNOW(Science - AAAS)
Britain to Shut Down Venerable Observatory
Britain's oldest scientific institution has finally received its feared death sentence. Following weeks of speculation, on 4 July the new Labour government announced plans to close the Royal Greenwich Observatory...
2 July 1997
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ScienceNOW(Science - AAAS)
Catching Waves in Orbit
Astronomers released today the first images made with the help of a new orbiting radio telescope. Although the images--which show a powerful jet of subatomic particles spewing from a quasar--are...
1 July 1997
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ScienceNOW(Science - AAAS)
Adios, ADEOS: Japanese Satellite Lost
TOKYO--Worldwide studies of climate and oceans took a heavy blow when Japan lost contact with its sensor-laden Advanced Earth Observing Satellite (ADEOS). "It's extremely disappointing," says Akimasa Sumi, a climate...
30 June 1997
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ScienceNOW(Science - AAAS)
Making Supernovas Look Like Mere Firecrackers
Titanic explosions that dwarf even the brightest supernovas, one scientist says, may account for mysterious gamma-ray bursts that flash once a day or so from random directions in the sky....
30 June 1997
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ScienceNOW(Science - AAAS)
Slimming Mathilde
LAUREL, MARYLAND—Adorned with incredibly deep, shadowed craters, Mathilde may look like your average asteroid. But to the surprise of researchers, she's a lightweight: The 52-kilometer asteroid has only a third...
26 June 1997
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ScienceNOW(Science - AAAS)
Accident Clouds U.S. Future on Mir
WASHINGTON, D.C.--The gash ripped in the Mir space station yesterday may deflate more than just the science module that served as living quarters and laboratory for U.S. astronauts: A delicate...
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