Fall arrives next week, and Mars is moving eastward.
The Nicaragua explosion claim was intriguing to asteroid watchers.
New star projector ain't much to look at, but sure can project.
Mercury is reasonably bright, but difficult to see so close to the sun.
Sagittarius is supposed to look like a centaur, but that's not really accurate.
Venus and Jupiter heading for a planetary conjunction.
NASA funds five proposals for far-out projects and two are based in Tucson.
Meet Chris Impey — a natural showman with a knack for explaining science.
The LSST promises the widest, deepest, fastest view of the cosmos.
Effort ensures production of mirrors here for the Giant Magellan Telescope.
Scorpius is one of the largest, brightest constellations.
Tonight, look for the summer triangle of Altair, Deneb, and Vega.
If you can spell Zubenelgenubi you have arrived as an amateur astronomer.
Even though it has been hot and has felt like summer for weeks, it officially begins this Saturday at 3:51 a.m.
Look south around 9 p.m. next week to see Scorpius standing straight up above the southeastern horizon. North of Scorpius and to its west (right) is the faint constellation Libra the Scales.
Weekes dedicated nearly 50 years to the search for sources of high-energy particles in the cosmos.
Researchers winning fellowships named for Sagan, Einstein and Hubble will study at the Department of Astronomy and the Lunar and Planetary Lab.
Astrobiologists hope an array of new telescopes and space missions, combined with technological leaps, will lead to evidence of life on exoplanets.
For the second time ever, an astronomer saw an asteroid headed for Earth before it got here.
Weekes, a pioneer of gamma-ray astronomy, searches for the enormously energetic particles coming from pulsars, supernovae and black holes.