News tagged with dust grains

Related topics: stars , planets

Organic compounds found in proto-planetary disks

(PhysOrg.com) -- A new study from scientists in the US has reported that organic compounds could be formed in proto-planetary disks, and could have seeded the development of life in our own and other planetary ...

Space & Earth / Astronomy

created Mar 30, 2012 | popularity 5 / 5 (7) | comments 0 | with audio podcast report

Space diamonds reveal supernova origins

Space diamonds may now be an astrophysicist's best friend.

Physics / Condensed Matter

created Feb 15, 2012 | popularity 4.8 / 5 (9) | comments 9 | with audio podcast

Frozen comet had a watery past, scientists find

For the first time, scientists have found convincing evidence for the presence of liquid water in a comet, shattering the current paradigm that comets never get warm enough to melt the ice that makes up the ...

Space & Earth / Space Exploration

created Apr 05, 2011 | popularity 5 / 5 (5) | comments 5 | with audio podcast

Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago

Scientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation, providing the first ...

Space & Earth / Astronomy

created Mar 03, 2011 | popularity 4 / 5 (6) | comments 13 | with audio podcast

Does prebiotic material exist in space?

Spanish and French astrophysicists have identified a band in the infrared range that serves to track the presence of organic material rich in oxygen and nitrogen in the interstellar dust grains. Should any ...

Space & Earth / Astronomy

created Mar 26, 2009 | popularity 4.4 / 5 (5) | comments 0

Sifting through dust near Orion's Belt

the surface grime that hides the beauty of an object. But this new image of Messier 78 and surroundings, which reveals the submillimetre-wavelength radiation from dust grains in space, shows that dust can ...

Space & Earth / Astronomy

created May 02, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

ALMA reveals workings of nearby planetary system

A new observatory still under construction has given astronomers a major breakthrough in understanding a nearby planetary system that can provide valuable clues about how such systems form and evolve. The ...

Space & Earth / Astronomy

created Apr 12, 2012 | popularity 5 / 5 (12) | comments 2 | with audio podcast

Astronomers solve the mystery of stellar 'superwind'

Astronomers at the University of Manchester believe they have found the answer to the mystery of a powerful "superwind" which causes the death of stars.

Space & Earth / Astronomy

created Apr 11, 2012 | popularity 4.8 / 5 (6) | comments 5 | with audio podcast

When stellar metallicity sparks planet formation

New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, ...

Space & Earth / Astronomy

created Apr 10, 2012 | popularity 5 / 5 (1) | comments 9 | with audio podcast

Measuring magnetic fields

(Phys.org) -- Polarized light is a familiar phenomenon, as people who prefer polarized sunglasses can testify. The electric field in a beam of light can vibrate either left-right or up-down, and the scattering ...

Space & Earth / Astronomy

created Apr 09, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Comet Wild2: First evidence of space weathering

(PhysOrg.com) -- The traditional picture of comets as cold, icy, unchanging bodies throughout their history is being reappraised in the light of analyses of dust grains from Comet Wild2. A team led by the ...

Space & Earth / Space Exploration

created Mar 27, 2012 | popularity 4.6 / 5 (10) | comments 0 | with audio podcast

The earliest stages of planet formation

(PhysOrg.com) -- Small dust particles in a disk of gas around a young star, according to current models, gradually coagulate during the first million years until kilometer-sized objects are formed. These in ...

Space & Earth / Astronomy

created Mar 26, 2012 | popularity 4.7 / 5 (3) | comments 0 | with audio podcast

Subaru's sharp eye confirms signs of unseen planets in the dust ring of HR 4796 A

(PhysOrg.com) -- The SEEDS (Strategic Exploration of Exoplanets and Disks with Subaru Telescope/HiCIAO) project, a five-year international collaboration launched in 2009 and led by Motohide Tamura of NAOJ ...

Space & Earth / Astronomy

created Dec 30, 2011 | popularity 5 / 5 (11) | comments 1 | with audio podcast

The cool clouds of Carina

(PhysOrg.com) -- Observations made with the APEX telescope in submillimetre-wavelength light reveal the cold dusty clouds from which stars form in the Carina Nebula. This site of violent star formation, which ...

Space & Earth / Astronomy

created Nov 16, 2011 | popularity 5 / 5 (1) | comments 2 | with audio podcast

Water and ammonia factories

(PhysOrg.com) -- Complex molecules, including many organic species, exist in a wide range of environments in the cosmos, and are especially abundant in giant molecular clouds of gas and dust where new stars ...

Space & Earth / Astronomy

created Nov 08, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast