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Why do we need a leap year? And happy February 29!
Every 4 years is a leap year. So 2024 has a leap day, February 29. But why? Julius Caesar presented a solar calendar to keep the seasons in line.
February 29, 2024
How astronauts to Mars can manage stress on the long journey
Astronauts headed to Mars will live and work in confinement for more than two years. Here are ways to manage these stressful conditions.
February 26, 2024
Underground nuclear tests now 99% detectable
New science is now able to detect 99% of underground nuclear tests, which will help keep tests from being conducted in secret.
February 11, 2024
Why is the 2024 Lunar New Year so late? Blame the moon
The reason the 2024 Lunar New Year falls so late is the date of new moon and how it aligns with spring in the Chinese calendar.
February 9, 2024
The April 8 eclipse is part of Saros 139. What does that mean?
Enjoy the April 8 eclipse as you witness the 30th of 71 member eclipses in the illustrious procession known as Saros 139. Learn more here.
February 8, 2024
NASA Jet Propulsion Laboratory to cut 8% of workforce this week
NASA's Jet Propulsion Laboratory - for decades a leader in robotic exploration of the planets in our solar system - will cut 8% of its workforce this week.
February 7, 2024
Can beavers revitalize California’s mountains and meadows?
Officials in California are relocating beavers (Castor canadensis) to help improve the state's mountain environment and waterways.
January 17, 2024
The strange story of the grave of Copernicus
Nicholas Copernicus was the astronomer who, five centuries ago, explained that Earth revolves around the sun, rather than vice versa. A true Renaissance man.
January 14, 2024
Why pee is yellow and how that keeps us healthy
A recent study revealed that bilirubin reductase is why pee is yellow. Learn more about the discovery and why yellow can be a sign of good health.
January 14, 2024
When does Friday the 13th have a full moon? Next one is 2049
Want to see some dates when a Friday the 13th and a full moon fall on the same day? Here are past and future Friday the 13ths with full moons.
January 13, 2024
