Research findings are available online in the journal Nature Astronomy. The original story “ Pristine star reveals the dawn ...

The smallest galaxies are challenging the conventional cosmological model. Scientists are studying these galaxies using sophisticated simulations.

A blazing supermassive black hole can influence far more than its own galaxy. Scientists found that quasars emit radiation strong enough to shut down star formation in nearby galaxies millions of ...

Galaxy season is upon us - the time of the year in the Northern Hemisphere when Earth's nightside faces out of the plane of the Milky Way towards constellations like Leo, Virgo, Coma Berenices, and ...

Powerful radiation from active supermassive black holes, which are believed to sit at the center of most galaxies, can do more than shape their own ...

For decades, Tucson and surrounding communities have maintained outdoor lighting regulations that limit light pollution and ...

From NASA’s Jet Propulsion Lab to a museum in Downey, here’s where you can get lost in the stars.

Flotillas have historically been fleets of military vessels—tools of empire designed for swift offensive or defensive operations at sea. The images they evoke are ones of imperial power and looming ...

Texans of diverse backgrounds and opposing politics are uniting to fight President Trump's plan build a border wall in the ...

Astronomers studying a slow-motion collision between two galaxies have uncovered a massive burst of new star formation. The new study co-authored by Dr. R. Pierre Martin, an astronomer at UH Hilo, ...

Sky This Week is brought to you in part by Celestron. Friday, April 3Mercury reaches greatest western elongation at 7 P.M.