December 16, 2017

A Close Pre-Historic Brush with Scholz’s Star

An artist’s conception of Scholz’s Star and its brown dwarf companion passing through the outer solar system.

(Credit: Michael Osadciw/University of Rochester).

A fascinating announcement out of the Astrophysical Journal caught our eye last week, as researchers announced that a newly discovered star made a close pass through our very own solar system some 70,000 years ago. [Read more...]

05.06.11: Attack of the Rogue Planets?

Do dark worlds abound? (Credit: NASA/Artist’s Concept).

They’re out there, Man… I don’t know why, but Sunday morning our thoughts always turn toward ideas of cosmic death and destruction here at ye’ ole Astroguyz HQ… a recent study published in the journal of Nature suggests a startling possibility; that free-floating gas giant planets may be common in our galaxy; more common, in fact, than stars by a ratio of 2:1 in favor of the dark worlds. [Read more...]

15.03.11: A Borderline Brown Dwarf.

A brown dwarf family portrait bracketed by our sun & Jupiter. (Artist’s conception: NASA/JPL/CalTech). 

Oh Be A Fine Girl/Guy Kiss Me Now… the mnemonic for stellar classification running from hottest to coldest has been long overdue overhaul, as brown dwarf classes L, T, and now Y have been placed on the cool end of the scale. And in the past month, a paper by Kevin Luhman and colleges at Pennsylvania State University have reported what may be the coolest brown dwarf known. [Read more...]

16.02.11: The Tyche Files.

Something kept floating around our astro-radar yesterday as we busily wrote about comet flybys, launches, and wacky space weather. Titles like “New Solar System Planet!” and “Solar Companion Found!” kept making a spurious appearance from unverified sources.

[Read more...]

01.02.2011: NEOWISE: Mission Accomplished.

Comet 65P Gunn as captured by NEOWISE. (Credit: NASA/JPL/CALTech).

An orbiting sentinel recently completed its secondary science mission. WISE, NASA’s Wide-field Infrared Survey Explorer, recently completed an all sky survey for Near Earth Objects (NEOs). Launched in December 2009, WISE’s primary mission was an all sky survey in the infrared spectrum. [Read more...]