Warp Starfield 2 - JavaScript and HTML5 Canvas demo by Kevin Roast #html5 #javascript. Amazing picture of earth as seen from space. Total solar eclipse. Milky_way_sky. A Trojan Asteroid Keeps Earth Company.
Copyright © 2011 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required. JOE PALCA, host: This is SCIENCE FRIDAY. I'm Joe Palca. Astronomers have found these asteroids, called Trojan asteroids, around Jupiter, Neptune and Mars, so it seemed likely the Earth would have one, but no one had found one until now. MARTIN CONNORS: Well, very happy to do so, Joe. PALCA: Good. So, Dr. CONNORS: Well, as you mentioned before, it's one that either follows or leads the planet in its orbit, kind of held in place by the combination of the planets and the sun's gravity. PALCA: So it's not just - I saw the simulations that you made. CONNORS: The eccentricity - that is to say the oval-ness of this orbit - is a little bit more pronounced than that of Earth's orbit, and that makes it slow down when it gets a little bit further away from the sun. PALCA: And why Trojan?
CONNORS: Why the name Trojan? PALCA: Yeah. PALCA: There are quite a few names in the Iliad. Space Shuttle Discovery - 360VR Images. Solar System Scope.