Super-Earths may come in two flavors | Science News

ADVERTISEMENT

REAL SCIENCE. REAL NEWS.

Help us keep you informed.

Support Science News.


News

Super-Earths may come in two flavors

Some of the exoplanets appear to be denser than others

By
1:55pm, September 8, 2011

Now that known exoplanets have become almost as numerous as fireflies on a midsummer’s eve, two top planet-finding missions are starting to disagree over the abundance of low-mass planets that are heavier than Earth but smaller than Neptune.

The Swiss-led HARPS mission suggests that between 30 and 50 percent of sunlike stars in the s

This article is only available to Science News subscribers. Already a subscriber? Log in now. Or subscribe today for full access.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content