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Posts by
Editors of EarthSky
Why love really is a drug
On this Valentine's Day, watch a video about certain chemicals - including dopamine, oxytocin and vasopressin - making you feel good around someone you love.
February 14, 2023
Chuck Yeager – personification of the ‘right stuff’ – born 100 years ago
Chuck Yeager, a military test pilot, became the first to break the sound barrier on October 14, 1947. Afterwards, he was dubbed "the fastest man alive."
February 12, 2023
February birthstone is the amethyst
Are you a February baby? Here's some cool info about your February birthstone, the amethyst. Read the lore of this purple stone, a variety of quartz.
February 3, 2023
Groundhog Day is an astronomy holiday
Traditionally, on Groundhog Day, Punxsutawney Phil sees his shadow - or doesn't - to predict six more weeks of winter - or an early spring.
February 2, 2023
Mercury is up before sunrise: Start watching now
Watch for Mercury in the east before sunup in January 2023. Mercury reaches greatest elongation on January 30 and remains bright through the end of the month.
January 25, 2023
Lunar New Year 2023: Year of the Rabbit
The Lunar New Year falls on January 21, 2023 (January 22 in Asia). It coincides with the date of new moon and signals the start of the Year of the Rabbit.
January 21, 2023
2023 June solstice: All you need to know
The June solstice takes place on June 21, 2023. Longest day for the Northern Hemisphere. Shortest day for the Southern Hemisphere.
January 21, 2023
Too cold to snow? Is that possible?
Can it ever be too cold to snow? The fact is, no matter how cold a snow-producing cloud is, if it has a source of water, it can build big snowflakes.
January 18, 2023
Cassiopeia and the Big Dipper in January
Watch the celestial clock and its two great big hour hands - Cassiopeia and the Big Dipper - as they swing around the North Star every night!
January 13, 2023
How far is Betelgeuse, the famous doomed star?
Betelgeuse is bright and it's exciting because one day it will explode - but how far away is it, really? Astronomers aren't sure.
January 8, 2023
