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Paul Bogard on why we need darkness
Light at night may be a sign of life on Earth, but the darkness will proclaim our true intelligence. Check out this video on why we need darkness, from Paul Bogard.
October 29, 2020
Halloween ghost of the summer sun
At mid-northern latitudes, the star Arcturus sets about 2 hours after sunset around Halloween. It sets at the same point on the horizon as the summer sun. It's a Halloween ghost of the summer sun and an echo of long summer afternoons.
October 29, 2020
The magnetic fields of a jellyfish galaxy
New work reveals the intricate relationship between so-called jellyfish galaxies, and the magnetic environment through which they move.
October 28, 2020
Lighting a path to find Planet Nine
The search for Planet Nine - a hypothesized 9th planet in our solar system - may come down to pinpointing the faintest orbital trails in an incredibly dark corner of space.
October 28, 2020
Moon and Mars meet in late October
Use the bright waxing gibbous moon to find the red planet Mars in late October 2020. This is the brightest that you'll see Mars for another 15 years!
October 28, 2020
SOFIA finds water on the moon’s sunlit surface
For the first time ever, scientists have identified water on the moon's sunlit surface, using SOFIA, an airborne observatory. Water on the moon also appears more widespread than previously thought.
October 27, 2020
What astronauts think about life away from Earth
Axiom is an aerospace company making new possibilities accessible to humanity. Watch as astronauts retell their experience launching from Earth and living in space.
October 27, 2020
Watch for Earth’s shadow and the Belt of Venus
Look east after sunset - or west before sunrise - for Earth's shadow. It's a deep blue-grey band, curved as Earth is curved, moving opposite the sun. The Belt of Venus is the subtle pink band above the shadow.
October 27, 2020
Super-Earth and sub-Neptune found orbiting a red dwarf star
Astronomers using a telescope in Mexico have found two more exoplanets - a super-Earth and a sub-Neptune - orbiting a red dwarf star 120 light-years from Earth.
October 26, 2020
The Arctic hasn’t been this warm for 3 million years
The last time CO2 concentrations reached today’s level was 3 million years ago, during the Pliocene Epoch. Hear from geoscientists who see evolving conditions in the Arctic as an indicator of how climate change could transform the planet.
October 25, 2020
