Showing posts with label solar system. Show all posts
Showing posts with label solar system. Show all posts

Sunday, March 20, 2016

ScienceCasts: Amazing Moons


Source - http://science.nasa.gov/

When the Space Age began, explorers were eager to visit the planets of the solar system. As the years have passed, however, astronomers have realized that the moons of the solar system may be even more interesting.

Sunday, September 07, 2014

Big Picture Science for 09/08/14 - A Sudden Change in Planets

Image for Big Picture Science weekly radio show
Big Picture Science - A Sudden Change in Planets

A planet is a planet is a planet. Unless it’s Pluto – then it’s a dwarf planet. But even then it’s a planet, according to experts. So what was behind the unpopular re-classification of Pluto by astronomers, and were they justified?

As the New Horizons spacecraft closes in on this small body, one planetary scientist says that this dwarf planet could be more typical of planets than Mars, Mercury, and Saturn. And that our solar system has not 8 or even 9 planets, but 900.

Also, meet a type of planet that’s surprisingly commonplace, although we don’t have one in our solar system: super Earths. Could they harbor life?

And the DAWN mission continues its visit to the two most massive residents of the asteroid belt: Vesta and Ceres. Discover what these proto-planets may reveal to us about the early solar system.

Guests:
  • Alan Stern – Planetary scientist, Southwest Research Institute, Principal Investigator of the New Horizons mission
  • Marc RaymanDAWN Mission chief engineer and mission director
  • David Stevenson – Professor of planetary science at CalTech
  • Rebekah Dawson – Astronomer, postdoctoral fellow at the University of California, Berkeley
  • David Eicher – Editor-in-chief, Astronomy Magazine

Permalink: http://radio.seti.org/episodes/A_Sudden_Change_in_Planets

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Wednesday, July 10, 2013

NASA Spacecraft Provides First View of the Solar System’s Tail


Source - NASA Science News for July 10, 2013

Like a comet, the solar system has a tail. For the first time, NASA's IBEX spacecraft has mapped out the structure of this tail, which is shaped like a four-leaf clover.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2013/10jul_ibex/

Tuesday, December 04, 2012

Voyager 1 Tastes Interstellar Space


Source - NASA Science News for Dec. 4, 2012

Eleven billion miles from Earth, NASA's Voyager 1 spacecraft has entered a "magnetic highway" that connects our solar system to interstellar space. This could be one of Voyager 1's last steps on its long journey to the stars.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/03dec_voyager1/

Friday, June 01, 2012

Astronomers Predict Titanic Collision: Milky Way vs. Andromeda

Source - NASA Science News for May 31, 2012

NASA astronomers announced today they can now predict with certainty the next major cosmic event to affect our galaxy, sun, and solar system: the titanic collision of our Milky Way galaxy with neighboring Andromeda.

FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2012/31may_andromed

Thursday, October 20, 2011

Comet Storm in a Nearby Star System

Source - NASA Science News for Oct. 19, 2011

NASA's Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as the "Late Heavy Bombardment."

FULL STORY at http://science.nasa.gov/science-news/science-at-nasa/2011/19oct_cometstorm/

Thursday, June 09, 2011

A Big Surprise from the Edge of the Solar System

Source - NASA Science News for June 9, 2011

NASA's Voyager probes have reached the edge of the solar system and found something surprising there--a froth of magnetic bubbles separating us from the rest of the galaxy.

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2011/09jun_bigsurprise/


Video source on Jun 9, 2011:


Tuesday, November 23, 2010

The Sun Steals Comets from Other Stars

Source - NASA Science News for Nov. 23, 2010

Some of the comets in our Solar System probably came from other stars, according to new research by NASA-supported scientists. Studying these 'alien' comets, they say, could reveal new information about stellar systems far, far away.

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2010/23nov_aliencomets/

Thursday, October 07, 2010

The Year of the Solar System

Source - NASA Science News for Oct. 7, 2010

Planetary exploration is shifting into high gear with an unprecedented tripling of flybys, orbital insertions and launches to destinations around the solar system. To commemorate the increase, NASA has declared the year ahead "The Year of the Solar System."

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2010/07oct_yss/

Thursday, January 14, 2010

Giant Ribbon at the Edge of the Solar System: Mystery Solved?

Source - NASA Science News for January 15, 2010

Last year, when NASA's IBEX (Interstellar Boundary Explorer) spacecraft discovered a giant ribbon at the edge of the solar system, researchers were mystified. They called it a "shocking result" and puzzled over its origin. Now the mystery may have been solved.

FULL STORY at

http://science.nasa.gov/headlines/y2010/15jan_ibex2.htm?list894285

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