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Embryonic development—lost in space?
Despite other challenges, biological difficulties may be the primary obstacle to successful mammalian reproduction and development in orbit, according to new findings by Teruhiko Wakayama and his coll...
Life Sciences |
Read moreRosetta bound for outer Solar System after final Earth swingby
Rosetta passed over the ocean, just South of the Indonesian island of Java, at exactly 08:45:40 CET, at a speed of 13.34 km/s with respect to Earth at an altitude of 2481 km. The swingby was pre-plann...
Physics and Astronomy | Read moreA Lightning Strike in Africa Helps Take the Pulse of the Sun
Sunspots, which rotate around the sun's surface, tell us a great deal about our own planet. Scientists rely on them, for instance, to measure the sun's rotation or to prepare long-range fore...
Earth Sciences | Read moreBirds lose color vision in twilight
It has long been known that birds have highly developed color vision that vastly surpasses that of humans. Birds see both more colors and ultraviolet light. However, it was not known what amount of li...
Life Sciences | Read more'Moonlighting' molecules discovered
Since the completion of the human genome sequence, a question has baffled researchers studying gene control: How is it that humans, being far more complex than the lowly yeast, do not proportionally c...
Life Sciences | Read moreNew Celestial Map Gives Directions for GPS
The system works well, and millions rely on it every day, but what tells the GPS satellites where they are in the first place? "For GPS to work, the orbital position, or ephemeris, of the...
Information Technology | Read moreBrief Highlights of the Fluid Dynamics Conference, Minneapolis
The 62nd Annual Meeting of the American Physical Society's (APS) Division of Fluid Dynamics takes place from November 22-24 at the Minneapolis Convention Center. This is the largest scientific me...
Event News | Read moreA Long Night Falls Over Saturn's Rings
This happens during Saturn's equinox, when the sun is directly over Saturn's equator. At this time, the rings, which also orbit directly over the planet's equator, appear edge-on to the...
Physics and Astronomy | Read moreImportant new novel 2009 H1N1 flu advisory for cardiopulmonary transplantation
Each year 3-5 million people have severe cases and 250-500,000 die from complications of seasonal influenza world-wide. This year, the novel 2009 H1N1 (nH1N1) influenza, previously called swine flu, h...
Health and Medicine | Read moreLast visit home for ESA’s comet chaser
This will be the third Earth swingby, the last of Rosetta’s four planetary gravity assists. Closest approach to Earth is expected at 08:45 CET. The swingby will provide exactly the boost Rosetta needs...
Physics and Astronomy | Read moreNASA Goddard visualization team previews lunar impact
The event is the highlight of NASA's Lunar Crater Observation and Sensing Satellite (LCROSS) mission. The LCROSS spacecraft flies behind its empty upper stage, which is targeted to strike the flo...
Physics and Astronomy | Read moreHubble Observes LCROSS Impact Event
Hubble's Wide Field Camera 3 (WFC3) and Space Telescope Imaging Spectrograph (STIS) were pointed just off the southern limb of the moon to look for a cloud of vaporized material blasted into spac...
Physics and Astronomy | Read moreNew aluminum-water rocket propellant promising for future space missions
The aluminum-ice, or ALICE, propellant might be used to launch rockets into orbit and for long-distance space missions and also to generate hydrogen for fuel cells, said Steven Son, an associate profe...
Physics and Astronomy | Read moreAlfalfa sprouts key to discovering how meandering rivers form and maintain
Sinuous, meandering streams produce diverse and wildlife-rich habitats and are the aim of many river restoration efforts, but until now, the bank, water flow and sediment conditions required to form a...
Ecology, The Environment and Conservation | Read moreSimulation suggests rocky exoplanet has bizarre atmosphere
So accustomed are we to the sunshine, rain, fog and snow of our home planet that we find it next to impossible to imagine a different atmosphere and other forms of precipitation. To be sure, D...
Physics and Astronomy | Read more
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