The night sky on Earth (assuming it survives) will change dramatically as our Milky Way galaxy merges with its neighbors and distant galaxies recede beyond view.

And on Monday it was the turn of Blue Sky Alternative Investments. The embattled asset manager is in the midst of a drawn out and painful confession process after short selling research firm ...

Blue skies would fade to hazy white if geoengineers inject light-scattering aerosols into the upper atmosphere to offset global warming. Critics have already warned that this might happen, but now ...

Why is the sky blue and where does it start? – Oliver Scott, age 7, Wombarra. ... you can see the blue sky fade away to a black background as it climbs above the atmosphere.

Gamma rays from sources near and far turn the sky into a hypnotic froth. The sun arcs serenely across the northern sky as active galaxies called blazars flare up and fade out. The movie ...