News tagged with leo satellites
Nearby galaxy boasts two monster black holes, both active
(PhysOrg.com) -- A study using NASA's Swift satellite and the Chandra X-ray Observatory has found a second supersized black hole at the heart of an unusual nearby galaxy already known to be sporting one.
Jun 10, 2011 |
4.8 / 5 (14) |
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Precise orbit determination for Jason-1 satellite using on-board GPS data with centimeter-level accuracy
The Jason-1 satellite obits have been computed using the on-board GPS data and the SHORDE-III procedure. Various orbit validations, including comparison with the Precise Orbit Ephemeris produced by JPL, orbit overlaps, and ...
Space & Earth / Space Exploration
Feb 02, 2009 |
4.5 / 5 (2) |
0
Search results for leo satellites
Space junk problem? Just fire a laser!
Imagine yourself as an astronaut performing scientific experiments and crowd-stunning aerobatics. Suddenly, ear-stinging, blaring alarms go off. Mission Control radios that all space station personnel should ...
Space & Earth / Space Exploration
Nov 04, 2011 |
4 / 5 (8) |
3
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Paul Spudis' plan for a sustainable and affordable lunar base
It’s long been a dream to have a human settlement on the Moon, but in this age of budget cuts and indecisive plans for NASA’s future, a Moon base may seem too costly and beyond our reach. However, ...
Space & Earth / Space Exploration
Oct 21, 2011 |
4.7 / 5 (20) |
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Giant star expels multiple dust shells
An international team led by Leen Decin, a K.U. Leuven (Belgium) astronomer, has discovered a series of dust shells in the vicinity of CW Leonis, a dying giant star. The star expelled the shells in the course of its long ...
Sep 28, 2011 |
4.3 / 5 (4) |
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Fermi's latest gamma-ray census highlights cosmic mysteries
(PhysOrg.com) -- Every three hours, NASA's Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite's scientists reanalyze all of ...
Sep 09, 2011 |
4.8 / 5 (16) |
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NRL fully integrates GPS radio occultation into global weather prediction
After rigorous validation for its positive impact on improving forecast accuracy, scientists at the NRL Marine Meteorology Division have transitioned the assimilation of GPS Radio Occultation (RO) data into ...
Space & Earth / Earth Sciences
Jun 06, 2011 |
3 / 5 (1) |
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Invisible Milky Way Satellite Uncovered With Help from NERSC
(PhysOrg.com) -- Astronomers predict that large spiral galaxies, like our Milky Way, have hundreds of satellite galaxies orbiting around them. While a few satellites are visible, like the Magellanic Clouds, ...
Mar 24, 2011 |
4.9 / 5 (8) |
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NASA proposes laser use to move space junk
(PhysOrg.com) -- A team of scientists led by NASA space scientist James Mason have proposed the idea of using a mid-powered laser and telescope to nudge pieces of space junk out of the way and slow it down ...
Space & Earth / Space Exploration
Mar 18, 2011 |
4.8 / 5 (5) |
6
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Forget Planet X! New technique could pinpoint Galaxy X
(PhysOrg.com) -- Planet X, an often-sought 10th planet, is so far a no-show, but Sukanya Chakrabarti has high hopes for finding what might be called Galaxy X – a dwarf galaxy that she predicts orbits ...
Jan 13, 2011 |
4.9 / 5 (11) |
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Harvard astronomers search for life's answers
If you gaze at the night sky and sometimes wonder, “What’s out there?” you’re not alone. Harvard scientists have asked the same question for centuries.
Sep 16, 2010 |
5 / 5 (1) |
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Safe and efficient de-orbit of space junk without making the problem worse
Global Aerospace Corporation (GAC) announced that Dr. Kristin L. Gates will present a paper on de-orbiting space junk at the August 2 Artificial and Natural Space Debris session of the AIAA Astrodynamics Specialists ...
Space & Earth / Space Exploration
Aug 02, 2010 |
4.9 / 5 (9) |
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List of search results for leo satellites
