- Exoplanets have been discovered circling some extremely old, metal-poor stars, creating interesting curiosities that might expand the theories of how planets form. These exoplanets might not harbor any kind of life... or we may want to get a bit more creative about how we envision life on other worlds. [url]
- A free-floating planet named CFBDSIR2149 is not orbiting a star, and it's only one of about two dozen or so known examples of a starless planet. This rogue planet is relatively young compared to the Earth, and some spectroscopic measurements suggest this planet's temperature is about 430° Celsius -- a bit too warm for our tastes (but maybe not for aliens?). [url]
- Within our own solar system, NASA's Cassini spacecraft has detected spurts of water from Saturn's moon Enceladus. This evidence leads to some speculation of a habitable zone on some icy moons where microbes might be able to survive. [url]
stories filed under: "exoplanets"
by Michael Ho
Mon, May 13th 2013 5:00pm
We've discovered thousands of exoplanets beyond our solar system, and some of them are even in the "Goldilocks zone" where liquid water could possibly exist. Some astronomers think life could be abundant in the universe, but there's not that much hard evidence (yet!). Here are just a few astronomical discoveries that might encourage researchers to look for signs of life a bit more carefully.
by Michael Ho
Mon, Mar 5th 2012 5:00pm
from the urls-we-dig-up dept
There's a lot we don't know about the universe. Until relatively recently, we weren't even sure how big the universe is. Telescopes looking deep into space have gathered a lot of interesting information, and we're finding all sorts of strange phenomena and types of extra-solar planets. Here are just a few cool tidbits about planets from far, far away.
- Nomad planets could be floating around our galaxy without orbiting a star in surprisingly large numbers. Based on some new estimates, there might be 100,000 times more nomad planets in the Milky Way than stars. [url]
- The Hubble telescope has found a totally new class of planet that is made of an enormous amount of water. Given the density of this waterworld, GJ1214b has more water than Earth and much less rockiness. [url]
- The Kepler Space Telescope has discovered over a thousand planets outside our solar system, and a few other star systems have interesting planetary orbit patterns. One "Kepler Object of Interest" (KOI) is a system in which there are planets that share the same orbit. In another KOI, all the planets circle their star in under a week. Strange, new worlds, indeed. [url]
- To discover more links on space exploration, check out what's floating around in StumbleUpon universe. [url]