News tagged with gravitational pull

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Spiral arms hint at the presence of planets

A new image of the disk of gas and dust around a sun-like star has spiral-arm-like structures. These features may provide clues to the presence of embedded but as-yet-unseen planets.

Oct 19, 2011
4.3 / 5 (6) 2

Hubble survey carries out a dark matter census

(PhysOrg.com) -- The NASA/ESA Hubble Space Telescope has been used to make an image of galaxy cluster MACS J1206.2-0847. The apparently distorted shapes of distant galaxies in the background is caused by an ...

Oct 13, 2011
4.2 / 5 (6) 8 | with audio podcast

New Celestial Map Gives Directions for GPS

(PhysOrg.com) -- Many of us have been rescued from unfamiliar territory by directions from a Global Positioning System (GPS) navigator. GPS satellites send signals to a receiver in your GPS navigator, which ...

Oct 29, 2009
4.5 / 5 (4) 0