It Comes From Space to Solve our Energy Problems
Mar 11, 2006 |
4.7 / 5 (75) |
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GreenFuel Technologies Corporation, a start-up company in Cambridge Massachusetts, wants to use little green algae to cleanse the smoke from polluting smokestacks, converting it back into bio-fuels such as ...
Interstellar Spaceflight: Is It Possible?
Dec 07, 2005 |
3.3 / 5 (295) |
1
With current space travel limited to just a few robotic probes visiting nearby planets, how realistic is it to think about reaching the nearest stars? For the short term, not very – especially when we speak ...
Manned vs. Unmanned Space Exploration (Part 2)
Nov 25, 2005 |
3.9 / 5 (68) |
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Watching the Apollo landings on the moon as a child I could hardly have imagined I was seeing the end of an era – that of manned exploration of space. Shuttle trips to low earth orbit not withstanding; the ...
Manned vs. Unmanned Space Exploration (Part 1)
Nov 23, 2005 |
3.8 / 5 (52) |
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Watching the Apollo landings on the moon as a child I could hardly have imagined I was seeing the end of an era – that of manned exploration of space. Shuttle trips to low earth orbit not withstanding; the ...
How to find a black hole
Oct 20, 2005 |
3.9 / 5 (22) |
0
Black holes. Just the name evokes mystery and intrigue. But do they really exist? Scientists have discovered at least 20 objects in 20 different galaxies that are potential black holes and may contain event hor ...
Unlocking the organic composition of ancient asteroids
Oct 07, 2005 |
5 / 5 (1) |
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New technology discovers primitive organic matter in 4.5 billion year old meteorites Meteorites contain fragments of asteroids brought about by collisions within the asteroid belt. These meteorites have not been exposed ...
Drilling on Mars to find evidence of ancient organisms: a second genesis of life?
Sep 15, 2005 |
4.5 / 5 (4) |
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Was there ever life on Mars? The answer to this question would do more than just satisfy curiosity. Researchers from NASA announce a plan to drill on Mars in search of ancient Martian organisms for comparison ...
LCROSS Impact Finds Water on the Moon
Space & Earth / Space Exploration
Nov 13, 2009 |
4.9 / 5 (31) |
14
(PhysOrg.com) -- The argument that the moon is a dry, desolate place no longer holds water. Secrets the moon has been holding, for perhaps billions of years, are now being revealed to the delight of scientists ...
How Much Energy Goes Into Making a Bottle of Water?
Mar 17, 2009 |
4 / 5 (43) |
39
(PhysOrg.com) -- Most people who buy bottled water have access to clean drinking water virtually for free (in the US, tap water costs less than a penny per gallon, on average). Nevertheless, the consumption ...
Moon geology could solve three mysteries of early Earth
Space & Earth / Earth Sciences
Dec 08, 2008 |
4.1 / 5 (37) |
8
(PhysOrg.com) -- Not much is known about the Earth before 4 billion years ago, the earliest period in the planet’s 4.5-billion-year history. Because Earth has lost almost all geological records of this era ...
'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 ...
How did the universe begin?
Jun 24, 2008 |
4.1 / 5 (148) |
138
One of the most interesting questions considered by astrophysicists deals with the start of our universe. Indeed, there is a great deal of speculation on the subject, with different theories about how the universe began, ...
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 ...
28 new planets, 7 new brown dwarfs reported by California, Carnegie team
May 29, 2007 |
4.5 / 5 (38) |
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The world's largest and most prolific team of planet hunters announced the discovery of 28 new planets outside our solar system, increasing to 236 the total number of known exoplanets.
Ocean Planets on the Brink of Detection
Feb 02, 2007 |
4.5 / 5 (119) |
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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, ...
