A team of astronomers has created the first three-dimensional map of the adolescent universe, just 3 billion years after the Big Bang.
Posts by EarthSky
Astronomers have discovered that our nearest galactic neighbors are devoid of star-forming gas, and that our Milky Way is to blame.
Astronomers struggle to learn about super-Earths – bigger than our Earth, smaller than Neptune – the most common type of planet found by the Kepler spacecraft.
A study demonstrates that Earth’s last magnetic reversal – 786,000 years ago – happened in roughly the span of a human lifetime.
Earth’s atmosphere is leaking into space, too, but only very, very slowly. Meanwhile, Mars is thought to have lost much of its atmosphere already.
Auriga the Charioteer is easy to spot on these October nights. Come to know its bright star Capella and the little asterism called The Kids.
Crocs are able to conduct highly organized game drives. They might be second only to humans in their hunting prowess, says a researcher.
For much of the Northern Hemisphere, on clear nights you can always see the brightest star in the constellation Cassiopeia.
Today’s sky chart shows the constellations of the Zodiac that are up after nightfall on these October evenings.
As the sun sets, it looks redder and redder as it gets closer to the horizon. Sometimes you can see a gradation of color a across the sun’s surface. Why does this happen?