News tagged with gravitational interactions

What happens when the poles flip?

Have you heard the startling news that the Earth's poles might flip? Perhaps in the response to a close pass from the mysterious Planet X? Are you imagining the entire Earth actually flipping over on its ...

Mar 21, 2014
2.9 / 5 (48) 13

How many moons does Earth have?

Look up into the night sky and count the moons. You can see only one moon, "the" Moon. But does the Earth have any other moons? Around the Solar System, multiple moons are the rule. Jupiter has 67 natural ...

Jul 05, 2013
4.4 / 5 (19) 7

Hubble tells a tale of galactic collisions

(Phys.org) —When we look into the distant cosmos, the great majority of the objects we see are galaxies: immense gatherings of stars, planets, gas, dust, and dark matter, showing up in all kind of shapes. ...

May 13, 2013
5 / 5 (3) 0 | with audio podcast

Twists and turns in interacting galaxies

(Phys.org)—Almost thirty years ago the Infrared Astronomy Satellite, IRAS, discovered that the universe contained many fabulously luminous galaxies, some of them more than a thousand times brighter than ...

Oct 08, 2012
5 / 5 (4) 3

41 new transiting planets in Kepler field of view

(Phys.org)—Two newly submitted studies verify 41 new transiting planets in 20 star systems. These results may increase the number of Kepler's confirmed planets by more than 50 percent: to 116 planets hosted ...

Aug 27, 2012
4.9 / 5 (10) 0 | with audio podcast

Hubble sees a vapor of stars

(Phys.org) -- Relatively few galaxies possess the sweeping, luminous spiral arms or brightly glowing center of our home galaxy the Milky Way. In fact, most of the Universe's galaxies look like small, amorphous ...

Jul 02, 2012
5 / 5 (2) 0 | with audio podcast

Space Image: Ring of fire

(PhysOrg.com) -- This composite image shows the central region of the spiral galaxy NGC 4151. X-rays (blue) from the Chandra X-ray Observatory are combined with optical data (yellow) showing positively charged ...

Dec 28, 2011
4.9 / 5 (7) 2 | with audio podcast