News tagged with gravitational pull
Related topics: dark matter , nasa , galaxies , solar system
Dark matter mystery deepens
(PhysOrg.com) -- Like all galaxies, our Milky Way is home to a strange substance called dark matter. Dark matter is invisible, betraying its presence only through its gravitational pull. Without dark matter ...
Oct 17, 2011 |
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NASA spacecraft now circling Mercury -- a first
For the first time, Earth has a regular orbiting eye-in-the-sky spying on the solar system's smallest and strangest planet, Mercury.
Space & Earth / Space Exploration
Mar 18, 2011 |
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Detailed dark matter map yields clues to galaxy cluster growth
(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope took advantage of a giant cosmic magnifying glass to create one of the sharpest and most detailed maps of dark matter in the universe. Dark ...
Nov 12, 2010 |
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Mergers Most Likely Fuel for Active Galaxies
(PhysOrg.com) -- The first solid evidence for how the center of some galaxies come to shine brightly while others barely flicker has been uncovered by researchers at the Kavli Institute for Particle Astrophysics ...
Jun 16, 2010 |
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Fall Into A Black Hole At The Speed Of Light With New Simulator
(PhysOrg.com) -- Black holes are my constant companions, at least in my imagination. Starting back a couple of decades ago, two sets of basketball tickets disappeared into one of them, and since then a pair ...
Feb 10, 2010 |
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New research suggests that near-Earth encounters can 'shake' asteroids
(PhysOrg.com) -- For decades, astronomers have analyzed the impact that asteroids could have on Earth. New research by MIT Professor of Planetary Science Richard Binzel examines the opposite scenario: that ...
Space & Earth / Space Exploration
Jan 20, 2010 |
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New research resolves conflict in theory of how galaxies form (w/ Video)
(PhysOrg.com) -- For more than two decades, the cold dark matter theory has been used by cosmologists to explain how the smooth universe born in the big bang more than 13 billion years ago evolved into the ...
Jan 13, 2010 |
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What will the Large Hadron Collider reveal?
With its successful test run at the end of 2009, the Large Hadron Collider near Geneva, Switzerland, seized the world record for the highest-energy particle collisions created by mankind. We can now reflect ...
Jan 07, 2010 |
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Gravitational Space Corridors Could Slash Space Travel Costs (w/ Video)
(PhysOrg.com) -- Scientists studying space travel possibilities have proposed that gravitational space corridors could be used by spacecraft, in much the same way as ships use ocean currents. Taking advantage ...
Space & Earth / Space Exploration
Sep 16, 2009 |
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Jupiter had temporary moon for 12 years
Comet 147P/Kushida-Muramatsu was captured as a temporary moon of Jupiter in the mid-20th century and remained trapped in an irregular orbit for about twelve years.
Space & Earth / Space Exploration
Sep 14, 2009 |
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Scientists watch black hole feast on unlucky star
Scientists have witnessed the rare spectacle of a supermassive black hole devouring a star that had ventured too close -- an event that occurs about once in 10,000 years, they reported on Wednesday.
May 02, 2012 |
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Mystery deepens around dark core in cosmic collision
Five years ago, San Francisco State researcher Andisheh Mahdavi and his colleagues observed an unexpected dark core at the center of Abell 520, a cosmic "train wreck" of galaxy clusters. With new space-based telescope observations, ...
Mar 02, 2012 |
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Tidal forces could squeeze out planetary water
Alien planets might experience tidal forces powerful enough to remove all their water, leaving behind hot, dry worlds like Venus, researchers said.
Space & Earth / Space Exploration
Feb 09, 2012 |
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World timekeepers split on scrapping leap second
Timekeepers meeting in Geneva failed to agree Thursday on a proposal to abolish a 40-year-old practice of adding the occasional second to world time.
Jan 19, 2012 |
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'Leap second' under the gun at Geneva time talks
Timekeepers gathered in Geneva on Thursday to thrash out a contested proposal to abolish a 40-year-old practice of adding the occasional second to world time.
Space & Earth / Space Exploration
Jan 19, 2012 |
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