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Latest Explorer program Stories

space-082511-001
2011-08-25 10:45:11

  NASA said on Wednesday that its Swift orbital telescope has captured a black hole ripping apart a star. Two studies appearing in the August 25th issue of the journal Nature show off a cosmic accident that has been streaming X-rays toward Earth since late March. The satellite first alerted astronomers of the intense and unusual high-energy flares from the new source of the constellation Draco. "Incredibly, this source is still producing X-rays and may remain bright enough...

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2011-07-19 11:54:19

Two small NASA probes that had been used to study space weather now are orbiting the moon to study its interior and surface composition. The spacecraft, called Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS), began their journey away from Earth's orbit in July 2009. The first spacecraft entered lunar orbit on June 27, and the second on July 17. Engineers used complex orbit maneuvers to relocate the spacecraft to their new locations....

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2011-07-14 08:10:00

2 probes, repositioned from THEMIS mission, will map surface magnetic fields By Robert Sanders, University of California - Berkeley On Sunday, July 17, the moon will acquire its second new companion in less than a month. That's when the second of two probes built by the University of California, Berkeley, and part of NASA's five-satellite THEMIS mission will drop into a permanent lunar orbit after a meandering, two-year journey from its original orbit around Earth. The first of the two probes...

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2011-02-18 09:35:57

Close to the globe, Earth's magnetic field wraps around the planet like a gigantic spherical web, curving in to touch Earth at the poles. But this isn't true as you get further from the planet. As you move to the high altitudes where satellites fly, nothing about that field is so simple. Instead, the large region enclosed by Earth's magnetic field, known as the magnetosphere, looks like a long, sideways jellyfish with its round bulb facing the sun and a long tail extending away from the sun....

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2010-12-15 10:23:47

Invisible to the naked eye, yet massive in structure around the Earth is the magnetosphere, the region of space around the planet that ebbs and flows in response to the million-mile-per-hour flow of charged particles continually blasting from the Sun. NASA's Interstellar Boundary Explorer (IBEX) spacecraft, designed to image the invisible interactions occurring at the edge of the solar system, captured images of magnetospheric structures and a dynamic event occurring in the magnetosphere as...

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2010-12-14 13:40:00

A team of scientists led by Marc Lessard of the University of New Hampshire Space Science Center launched an instrument-laden, four-stage sounding rocket from Norway's Andøya Rocket Range into aurora about 200 miles above Earth early Sunday morning (Dec. 12, 2010), just before the two-week launch window slammed shut. For the 10-minute flight, a 65-foot-long Black Brant XII rocket arced through a funnel-shaped region of Earth's magnetic field lines before landing some 900 miles...

2010-11-22 07:30:00

MINNEAPOLIS, Nov. 22, 2010 /PRNewswire/ -- ATK (NYSE: ATK) and NASA are marking the 10-year anniversary of NASA's Earth Observing-1 (EO-1) satellite. The spacecraft, built by ATK for the Goddard Space Flight Center in Greenbelt, Maryland, had an initial design and mission life of one year, but continues operating today, more than nine years past the initial mission. The EO-1 satellite launched on November 21, 2000. ATK served as the Prime Contractor, Satellite Mission Integrator and Bus...

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2010-10-25 06:38:11

Flight Dynamics data from THEMIS-B (one of the two ARTEMIS spacecraft) indicated that one of the EFI (electric field instrument)spherical tip masses may have been struck by a meteoroid at 0605 UT on October 14. All science instruments continue to collect data. The probe and science instruments aboard the spacecraft continue to operate nominally. The upcoming insertion into Lissajous orbit will not be interrupted. ARTEMIS stands for "Acceleration, Reconnection, Turbulence and Electrodynamics...

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2010-10-25 06:30:29

Astronomers in Japan, using an X-ray detector on the International Space Station, and at Penn State University, using NASA's Swift space observatory, are announcing the discovery of an object newly emitting X-rays, which previously had been hidden inside our Milky Way galaxy in the constellation Centaurus. The object -- a binary system -- was revealed recently when an instrument on the International Space Station named MAXI (Monitor of All-Sky X-ray Image) on the Exposed Facility of the...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.