News tagged with dust

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Sakurai's Object: Stellar evolution in real time

(Phys.org) —Stellar lifetimes are measured in billions of years, so changes in their appearance rarely take place on a human timescale. Thus an opportunity to observe a star passing from one stage of life ...

Apr 02, 2014
4.7 / 5 (18) 0

Near-Earth asteroid is really a comet

Some things are not always what they seem—even in space. For 30 years, scientists believed a large near-Earth object was an asteroid. Now, an international team including Joshua Emery, assistant professor ...

Sep 10, 2013
4.8 / 5 (18) 15 | with audio podcast

A close look at the Toby Jug Nebula

ESO's Very Large Telescope has captured a remarkably detailed image of the Toby Jug Nebula, a cloud of gas and dust surrounding a red giant star. This view shows the characteristic arcing structure of the ...

Oct 09, 2013
4.6 / 5 (7) 12 | with audio podcast

Supernova's super dust factory imaged with ALMA

Galaxies can be remarkably dusty places and supernovas are thought to be a primary source of that dust, especially in the early Universe. Direct evidence of a supernova's dust-making capabilities, however, ...

Jan 06, 2014
5 / 5 (7) 3 | with audio podcast

Supernova seen in two lights

(Phys.org) —The destructive results of a mighty supernova explosion reveal themselves in a delicate blend of infrared and X-ray light, as seen in this image from NASA's Spitzer Space Telescope and Chandra ...

Aug 22, 2014
4.7 / 5 (7) 1

Shocks in the Cygnus Loop supernovae remnant

(Phys.org) —Supernova remnants (SNRs) play a vital role in the lifecycle of dust in the interstellar medium. As shockwaves from supernovae sweep up interstellar material, they heat the gas and dust, and ...

Jun 27, 2014
5 / 5 (2) 0

Flying fish – from Africa to the Amazon

(Phys.org) —Scientists have uncovered the natural fertiliser contained within Saharan dust that plays an important role in the health of the Amazon rainforest when it is blown across the Atlantic: fish ...

Sep 25, 2014
5 / 5 (4) 2

Light echoes from V838 Mon

(Phys.org) —What caused this outburst of V838 Mon? For reasons unknown, star V838 Mon's outer surface suddenly greatly expanded with the result that it became the brightest star in the entire Milky Way ...

Mar 19, 2013
5 / 5 (4) 2 | with audio podcast

A rare snapshot of a planetary construction site

(Phys.org) —Planets are formed in disks of gas and dust around nascent stars. Now, combined observations with the compound telescope ALMA and the Herschel Space Observatory have produced a rare view of ...

Oct 24, 2013
4.8 / 5 (5) 0 | with audio podcast

Orion's hidden fiery ribbon

(Phys.org) —This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold ...

May 15, 2013
4.5 / 5 (4) 18 | with audio podcast