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How many stars can you see on a moonless night?
Have you ever wondered how many stars are visible on a given night? It all depends on how dark your sky is, what your age is, and other limiting factors.
September 23, 2025
Supernova 1181 was described in an ancient Arabic poem
Researchers discovered new evidence of Supernova 1181 in an ancient Arabic poem praising the 12th century military leader and politician Saladin.
September 19, 2025
Artificial photosynthesis breakthrough! Solar fuels to come?
Scientists have developed a new molecule that might bring artificial photosynthesis - and clean, sun-powered fuels - a step closer.
September 4, 2025
Afghanistan earthquake: Impassable roads, inclement weather
The Taliban, which rules war-torn Afghanistan, has asked the world for help with recovery efforts following Sunday's 6.0-magnitude Afghanistan earthquake.
September 2, 2025
Sudan landslide flattens village, leaves uncertain death toll
There are conflicting reports of the death toll today, following Sunday's Sudan landslide in the remote Marra Mountains. But it appears hundreds are dead.
September 2, 2025
Sapphire: September birthstone comes in many colors
Sapphire, the September birthstone, is typically blue, the color caused by small amounts of titanium and iron in the crystal structure.
September 2, 2025
Labor Day: Learn its history and traditions
Labor Day is a federal US holiday that falls on the first Monday in September and is considered the unofficial end of summer.
August 31, 2025
Hurricane Katrina retrospective: 20 years after the storm
It is the 20th anniversary of Hurricane Katrina, one of the deadliest and costliest hurricanes to ever impact the United States.
August 29, 2025
How to find aliens: Look when their planets are aligned
A new study proposes a novel idea for how to find aliens: Look for their deep space communications when their planets are in alignment, as seen from Earth.
August 28, 2025
Starship redeems itself in spectacular 10th test flight
After a series of explosive failures this year, SpaceX’s Starship saw spectacular success during its 10th flight test on August 26, 2025.
August 27, 2025
