Posts by Cecile

01April12_430
Apr 01, 2012 Tonight 10 Comments

Enjoy evening pairing of Venus and Pleiades in early April 2012

The planet Venus joins the Pleiades star cluster for a beautiful pairing we all can see in the evening skies in early April 2012.

Image credit: NASA/JPL/Space Science Institute
Mar 30, 2012 Space 1 Comment

Microbes on or within Saturn’s moon Enceladus?

“It sounds crazy but it could be snowing microbes on the surface of this little world,” a space scientist said of Saturn’s moon Enceladus.

Electric car
Feb 22, 2012 Human World 3 Comments

Electric cars need a clean energy source, study suggests

You might assume that air quality and health impacts are lower for electric vehicles than for conventional vehicles. Not necessarily so, this study reveals.

Image credit: NASA/JPL-Caltech
Sep 01, 2011 Space 7 Comments

Stars are hot, right? Not this star.

Astronomers have found the coolest star – temperature-wise. This star is cooler than the human body.

Tamarisk leaf beetles at work
Jul 28, 2011 Earth Leave a comment

Tamarisk leaf beetles at work along the Colorado River

Years ago, when experts were first considering using beetles to kill tamarisk, I had doubts about introducing a non-native insect to control a non-native plant.

NASA/JPL-Caltech/R. Hurt
May 19, 2011 Space Leave a comment

Billions of orphan Jupiters adrift in Milky Way galaxy?

Astronomers have discovered 10 free-floating, Jupiter-sized planets in our galaxy and say these objects might be more common than stars.

Credit: NASA/Tim Pyle
May 09, 2011 Space 4 Comments

Geoff Marcy in Flagstaff on Kepler mission’s extraordinary planet discoveries

Famed planet-hunter Geoff Marcy spoke on May 2, 2011 about the Kepler space telescope and its 1,235 candidate planets. Does he think we’ll find intelligent life?

mercury_venus_moon

Mercury waltzes with bright planets at dawn May 2011

As Mercury reemerges as a morning object in May 2011, the solar system’s innermost planet will join up with the planets Jupiter, Venus and Mars in the eastern sky at dawn.

Image Credit: NASA/JPL-Caltech
Apr 07, 2011 Space 2 Comments

Evidence for liquid water on the surface of Comet Wild-2

The first convincing evidence of liquid water on a comet comes from analysis of a sample of Comet Wild-2, returned to Earth by NASA’s Stardust space mission.

NASA/JPL-Caltech/UCLA/PSI
Apr 01, 2011 Space 2 Comments

Vesta: An asteroid or not an asteroid?

The asteroid Vesta will soon get a visitor. The Dawn spacecraft will enter Vesta orbit in July, 2011. In the meantime, scientists and media are turning their gaze toward this little world.