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Human World
What is time, and why does it move forward?
What is time, and why does it move forward? Cosmologist Thomas Kitching of University College London explains how the arrow of time points to the future.
September 19, 2021
Space
Planets are born in cosmic organic soups
Astronomers have found that planets form in cosmic soups of organic molecules. These soups have different ingredients, leading to a wide diversity of planets.
September 18, 2021
Space
Sex in space: Time to talk about it?
Sex in space has been a taboo subject for decades. But, these authors point out, it'll be necessary for the survival of the human race.
September 17, 2021
Astronomy Essentials
What are red giants?
What are red giants? Most main-sequence stars, like our sun, will become one. Red giants swell to such a large size they can swallow their inner planets.
September 17, 2021
Space
Inspiration4: 1st all-civilian crew goes to space
SpaceX made history again on September 15, 2021, as it successfully launched Inspiration4, "the world’s first all-civilian mission."
September 16, 2021
Astronomy Essentials
Are day and night equal at the equinox?
Are day and night equal at an equinox? No. Earth's atmosphere and our sun team up to give us more day than night at an equinox.
September 16, 2021
Astronomy Essentials
September equinox: All you need to know
The equinox is September 22. From around the world on the day of an equinox, the sun pretty much rises and sets due east and west.
September 16, 2021
Space
SpaceX lasers define next era of Starlink technology
SpaceX lasers launched this week with a new batch of Starlink satellites marks a transition in tech for the satellite broadband network.
September 15, 2021
Astronomy Essentials
Harvest Moon 2021: All you need to know
In 2021, the Northern Hemisphere's Harvest Moon falls on September 20, or less than 2 days before the autumn equinox.
September 15, 2021
Space
Rerun of a supernova blast expected 2037
Astronomers expect to see a rerun of a supernova blast, whose light traveled 10 billion years to reach us, in about the year 2037.
September 15, 2021
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