Plasma Rocket Could Travel to Mars in 39 Days
Space & Earth / Space Exploration
Oct 06, 2009 |
4.8 / 5 (125) |
72
(PhysOrg.com) -- Last Wednesday, the Ad Astra Rocket Company tested what is currently the most powerful plasma rocket in the world. As the Webster, Texas, company announced, the VASIMR VX-200 engine ran at ...
Largest Ever Killer Crater Found Under Ice in Antarctica
Space & Earth / Earth Sciences
Jun 02, 2006 |
4.9 / 5 (123) |
0
Planetary scientists have found evidence of a meteor impact much larger and earlier than the one that killed the dinosaurs -- an impact that they believe caused the biggest mass extinction in Earth's history.
Sea Level Rise Due to Global Warming Poses Threat to New York City
Space & Earth / Earth Sciences
Mar 13, 2009 |
4.3 / 5 (138) |
34
(PhysOrg.com) -- Global warming is expected to cause the sea level along the northeastern U.S. coast to rise almost twice as fast as global sea levels during this century, putting New York City at greater ...
New government brochure explains climate science
Mar 18, 2009 |
4.7 / 5 (123) |
7
(AP) -- Day after day, reports of the dangers of climate and climate change circulate in the news, often filled with confusing data and debate.
Voyager 2 proves solar system is squashed
Dec 10, 2007 |
4.6 / 5 (123) |
2
NASA's Voyager 2 spacecraft has followed its twin Voyager 1 into the solar system's final frontier, a vast region at the edge of our solar system where the solar wind runs up against the thin gas between the ...
Scientists watch supernova in real-time
Aug 30, 2006 |
4.7 / 5 (119) |
0
For the first time a star has been observed in real-time as it goes supernova – a mind bogglingly powerful explosion as the star ends its life, the resulting cosmic eruption briefly outshining an entire galaxy. ...
Closest Look Ever at the Edge of a Black Hole
Sep 03, 2008 |
4.6 / 5 (121) |
1
(PhysOrg.com) -- Astronomers have taken the closest look ever at the giant black hole in the center of the Milky Way. By combining telescopes in Hawaii, Arizona, and California, they detected structure at ...
Antarctica to Pyramids -- lights dim for Earth Hour (Update)
Mar 28, 2009 |
4.5 / 5 (122) |
21
(AP) -- From an Antarctic research base to the Great Pyramids of Egypt and beyond, the world switched off the lights on Saturday for Earth Hour, dimming skyscrapers, city streets and some of the world's most ...
First Analysis of the Water Requirements of a Hydrogen Economy
Oct 18, 2007 |
4.3 / 5 (127) |
28
One of the touted benefits of the futuristic US hydrogen economy is that the hydrogen supply—in the form of water—is virtually limitless. This assumption is taken for granted so much that no major study has ...
Ocean Planets on the Brink of Detection
Feb 02, 2007 |
4.5 / 5 (119) |
0
Imagine a world with no land at all, merely the impenetrable depths of a seething ocean. Models of planet formation predict the existence of such worlds, even though our own solar system has none. Indeed, ...
New simulation shows consequences of a world without Earth's natural sunscreen (w/Video)
Space & Earth / Earth Sciences
Mar 19, 2009 |
4.5 / 5 (119) |
7
(PhysOrg.com) -- The year is 2065. Nearly two-thirds of Earth's ozone is gone -- not just over the poles, but everywhere. The infamous ozone hole over Antarctica, first discovered in the 1980s, is a year-round ...
Mysterious energy burst stuns astronomers
Sep 28, 2007 |
4.6 / 5 (116) |
0
Astronomers studying archival data from an Australian radio telescope have discovered a powerful, short-lived burst of radio waves that they say indicates an entirely new type of astronomical phenomenon.
A galactic fossil: Star is found to be 13.2 billion years old
May 10, 2007 |
4.4 / 5 (122) |
2
How old are the oldest stars" Using ESO's VLT, astronomers recently measured the age of a star located in our Galaxy. The star, a real fossil, is found to be 13.2 billion years old, not very far from the 13.7 ...
'Calm before storm' may foreshadow climatic tipping point
Space & Earth / Earth Sciences
Sep 17, 2008 |
3.6 / 5 (137) |
63
(PhysOrg.com) -- Abrupt climate change has occurred on earth many times over the past millions of years. Climate scientists hypothesize that these sharp transitions may be caused when the earth system reaches ...
The Mysterious Smell of Moondust
Feb 03, 2006 |
4.6 / 5 (107) |
1
Moondust. "I wish I could send you some," says Apollo 17 astronaut Gene Cernan. Just a thimbleful scooped fresh off the lunar surface. "It's amazing stuff."
