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Posts by
Deborah Byrd
Comets and asteroids: What’s the difference?
Comets and asteroids both orbit our sun, but usually reside in different parts of our solar system. And except for a few, they're different materials.
January 31, 2023
Photos of Venus-Saturn conjunction, January 2023
Photos of Venus-Saturn conjunction, via the EarthSky community, on and around January 22, 2023. Plus the young moon joined the show. Beautiful!
January 23, 2023
Jupiter closest to sun in 12 years on January 20
Jupiter's perihelion (closest point to the sun) comes January 20 at 12 UTC. The distance between the sun and Jupiter is now 460 million miles (740 million km).
January 20, 2023
Top tips for observing the sun safely
There's a giant sunspot visible in January 2023. Some tips for observing the sun safely, plus videos and links, here.
January 19, 2023
Visible planets and night sky January and February
February 2023 visible planets including dazzling Jupiter and Venus in the west after sunset. Mars is high in the evening sky. Mercury is up before sunrise.
January 18, 2023
Orion the Hunter is easy to spot in January
Orion the Hunter is one of the easiest constellations to identify thanks to its Belt, the 3 medium-bright stars in a short, straight row at his waist.
January 17, 2023
Lenticular clouds look like UFOs
Lenticular clouds look like UFOs. See photos of lenticular clouds in various parts of the world, from the EarthSky community.
January 12, 2023
Astronomers find 8 new super-hot stars
An international team of astronomers - using a telescope in South Africa - have discovered 8 new super-hot stars that shed light on how stars evolve.
January 11, 2023
Many mammals headed for extinction, study says
A new study focuses on mammals headed for extinction. It shows that human activities push animals into poor-quality environments, where they often do poorly.
January 10, 2023
What is a supermoon? And when, in 2023?
In 2023, there are 3 new supermoons. And there will be a full supermoon on July 3, August 1, August 31 and September 29. The August 31 one is also a Blue Moon.
January 5, 2023
