News tagged with astrophysical journal letters

Spitzer's SPLASH project dives deep for galaxies

(Phys.org) —A new survey of galaxies by NASA's Spitzer Space Telescope is taking a plunge into the deep and uncharted waters of our cosmos. In one of the longest surveys the telescope will have ever performed, ...

Sep 10, 2014
5 / 5 (4) 1

What lit up the universe?

New research from UCL shows we will soon uncover the origin of the ultraviolet light that bathes the cosmos, helping scientists understand how galaxies were built.

Aug 27, 2014
4.5 / 5 (22) 6

Laser-wielding robot probes exoplanet systems

(Phys.org) —An international team, including Dr. Christoph Baranec of the University of Hawaii at Manoa's Institute for Astronomy, is using the world's first robotic laser adaptive optics system—Robo-AO— ...

Aug 05, 2014
5 / 5 (7) 0

Sun-like stars reveal their ages

(Phys.org) —Defining what makes a star "Sun-like" is as difficult as defining what makes a planet "Earth-like." A solar twin should have a temperature, mass, and spectral type similar to our Sun. We also ...

Jul 10, 2014
5 / 5 (6) 4

Pitch black: Cosmic clumps cast the darkest shadows

(Phys.org) —Astronomers have found cosmic clumps so dark, dense and dusty that they throw the deepest shadows ever recorded. Infrared observations from NASA's Spitzer Space Telescope of these blackest-of-black ...

May 22, 2014
4.6 / 5 (11) 2