ScienceDaily: Strange Science News |
- Vampire bats’ saliva is specially evolved for blood-feeding
- Halloween skies to include dead comet flyby
- NASA spots the 'Great Pumpkin': Halloween asteroid a treat for radar astronomers
- Why some insects kill their mothers
- Farming on Mars? The Martian raises questions about soil
| Vampire bats’ saliva is specially evolved for blood-feeding Posted: 30 Oct 2015 07:08 PM PDT Researchers have said some of the venomous contents in the bats' saliva likely evolved by recruiting ancestral genes to produce new transcript molecules rather than by creating completely new gene sequences. |
| Halloween skies to include dead comet flyby Posted: 30 Oct 2015 04:00 PM PDT The large space rock that will zip past Earth this Halloween is most likely a dead comet that, fittingly, bears an eerie resemblance to a skull. Scientists observing asteroid 2015 TB145 with NASA's Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii, have determined that the celestial object is more than likely a dead comet that has shed its volatiles after numerous passes around the sun. |
| NASA spots the 'Great Pumpkin': Halloween asteroid a treat for radar astronomers Posted: 30 Oct 2015 11:09 AM PDT NASA scientists are tracking the upcoming Halloween flyby of asteroid 2015 TB145 with several optical observatories and the radar capabilities of the agency's Deep Space Network at Goldstone, California. The asteroid will fly past Earth at a safe distance slightly farther than the moon's orbit on Oct. 31 at 10:01 a.m. PDT (1:01 p.m. EDT). Scientists are treating the flyby of the estimated 1,300-foot-wide (400-meter) asteroid as a science target of opportunity, allowing instruments on "spacecraft Earth" to scan it during the close pass. |
| Why some insects kill their mothers Posted: 29 Oct 2015 04:08 PM PDT Among social insects, why does it pay for workers to help the queen in some situations but then also pay to kill her in others? What explains why some queens get killed and not others, and why kill her at all? One expert explored these questions, and found that by eliminating the queen, a matricidal worker frees the way for workers to lay male eggs. |
| Farming on Mars? The Martian raises questions about soil Posted: 29 Oct 2015 10:49 AM PDT In the recent sci-fi hit, The Martian, the main character, astronaut Mark Watney (played by Matt Damon), manages to grow potatoes on the planet with a mix of ingenuity, science, and a bit of Hollywood make-believe. Could it work? |
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