-
Contents
- Mystery Meteorite: The case for (and against) a rock from Mercury
- Hard Times for Theorists in a Post-Higgs World: The Large Hadron Collider’s big success leaves no clear avenue for new physics
- In the Eye of the Tiger: Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions
- subscribe
- give a gift
- renew
- RSS Feeds
- email alerts
- Digital Edition
- Podcast
- Past issues
-
Contents
- Infection time: Disease is more severe when it hits in the morning, at least in mice
- Explainer: Our bodies’ internal clocks: Biological clocks determine hunger, sleepiness and other daily rhythms
- Flu in the air: Germs tiny enough to pass through surgical masks may cause half of all cases
Planets with masses that fall between Earth’s and Neptune’s, as shown in the illustration above, might be common around distant stars and are targets for scientists searching for Earthlike worlds. But just how common is up for debate, and the results of two exoplanet surveys disagree. Now, astronomers suggest the super-Earths and sub-Neptunes might fall into two different density classes — and that some searches more easily detect one class than the other, explaining the differing results.
Credit: Aldaron/Wikimedia Commons
-
Even if science can’t make life longer, perhaps a pill can make a long life better
-
The gene patenting decision from a plaintiff’s point of view
-
With everyday materials, two research teams conceal ordinary objects
-
In mating display, male birds match moves to songs
-
Coverage of the 2013 American Association for the Advancement of Science meeting
-
The Year in Science 2012
-
Three-part series on the scientific struggle to explain the conscious self
-
Tables of contents, columns and FAQs on SN Prime for iPad
-
-
By Leila Schneps and Coralie Colmez
Review by Janet Raloff
Please alert Science News to any inappropriate posts by clicking the REPORT SPAM link within the post. Comments will be reviewed before posting.
You must register with Science News to add a comment. To log-in click here. To register as a new user, follow this link.