News tagged with gravity

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A black hole unmasked

Black holes are among the most amazing and bizarre predictions of Einstein's theory of gravity. A black hole is thought to be point-like in dimension, but it is surrounded by an imaginary surface, or "edge," ...

Nov 29, 2011
4.7 / 5 (19) 26 | with audio podcast

Mystery of the missing waves on Titan

One of the most shocking discoveries of the past 10 years is how much the landscape of Saturn's moon Titan resembles Earth. Like our own blue planet, the surface of Titan is dotted with lakes and seas; it ...

Jul 23, 2013
4.8 / 5 (16) 1 | with audio podcast

Cassini sees Saturn stressing out Enceladus

(PhysOrg.com) -- Images from NASA's Cassini spacecraft have, for the first time, enabled scientists to correlate the spraying of jets of water vapor from fissures on Saturn's moon Enceladus with the way Saturn's ...

Mar 20, 2012
not rated yet 3 | with audio podcast

Jet packs rule, say deep-sea astronauts

Battery-powered jet packs are definitely the best part of tooling around on the ocean floor in practice drills for an eventual visit to an asteroid, an international crew of astronauts said Monday.

Oct 25, 2011
4.2 / 5 (5) 0

Black holes as particle detectors

(Phys.org) -- Previously undiscovered particles could be detected as they accumulate around black holes say Scientists at the Vienna University of Technology.

Jun 18, 2012
4.3 / 5 (11) 20 | with audio podcast

Hubble spies edge-on beauty

(Phys.org) -- Visible in the constellation of Andromeda, NGC 891 is located approximately 30 million light-years away from Earth. The NASA/ESA Hubble Space Telescope turned its powerful wide field Advanced ...

May 21, 2012
3.4 / 5 (5) 16 | with audio podcast

Heliophysics nugget: Riding the plasma wave

Throughout the universe more than 99 percent of matter looks nothing like what's on Earth. Instead of materials we can touch and see, instead of motions we intuitively expect like a ball rolling down a hill, ...

Jul 18, 2012
4.9 / 5 (18) 2 | with audio podcast