AmericaSpace Launch Countdown

Next Launch AFSPC-4 on a Delta 4 - Medium+ rocket from Cape Canaveral AFB, FL scheduled for 24 Jul 14 22:59:00 GMT

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It's an Alien Blue World—But Nothing Like Earth

Artist’s conception of exoplanet HD 189733b—a “deep blue dot” reminiscent of Earth from a distance. Image Credit: NASA / ESA / M. Kornmesser

The planets and moons in our Solar System come in a wide variety of colors, and the natural beauty can be breathtaking. Now, the true color of a much more distant [...]

Hubble Space Telescope Reveals Evidence of Farthest Known Planet From Its Star

A gap in the protoplanetary disk of dust and gas whirling around TV Hydrae uncovered evidence of an unseen, growing planet, according to astronomers studying Hubble data. Image Credit: NASA, ESA, J. Debes (STScI), H. Jang-Condell (University of Wyoming), A. Weinberger (Carnegie Institution of Washington), A. Roberge (Goddard Space Flight Center), G. Schneider (University [...]

Hubble Space Telescope to Use Microlensing to Hunt for Nearby Exoplanets

Artist’s impression of a planet orbiting the red dwarf Proxima Centauri. Image Credit: Michael Kilderry.

It was announced this week at the 222nd meeting of American Astronomical Society that Proxima Centauri, a red dwarf and the closest star to the Sun, is predicted to pass in front of two unnamed background stars, one in [...]

Strange New Worlds: Exoplanets Abound in the Cosmos (Part 2)

A comparison of the sizes of the three known planets of the star Kepler-37 with some of the worlds of the solar system. Image Credit: NASA/JPL-Caltech

Astronomers have been dazzled by the sheer number of planets there seem to be in the galaxy. According to a recent estimate, there’s on average at least one [...]

Astronomers Find Earth-Sized Planet Orbiting Alpha Centauri B

Artist’s concept of the newly-discovered planet, Alpha Centauri Bb, in orbit around its parent star, with Alpha Centauri A visible at bottom left and our Sun at upper right. The discovery was made by tracking perturbations in Alpha Centauri B’s movements as small as a baby’s crawl…an astonishing accomplishment when one considers that the [...]