"Even today, our understanding of star formation is still developing; comprehending how stars formed in the earlier universe is even more challenging." ...

A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

Today, we know of Mars as a cold, dry desert, with patches of subterranean ice and ice caps at its poles. Billions of years ...

Researchers have found that stars in the early universe may have formed from 'fluffy' molecular clouds. Using the ALMA telescope to observe the Small Magellanic Cloud -- whose environment is similar ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful colors.

Hubble’s latest image of the Tarantula Nebula highlights cosmic dust, interstellar gas, and active star formation.

Venus is now at its almost unbelievably brightest at a marvelous time when many other (though less radiant) planets and ...

The Orion Nebula is one of the best “must-see” attractions in the sky, and it’s even more impressive once you get to know ...

The Orion Nebula is one of the best must-see attractions in the Pottsville sky, and it is even more impressive once you get ...

The Orion Nebula is one of the best “must-see” attractions in the Butler night sky, and it’s even more impressive once you ...