Strikes on Ukrainian energy systems have tripled this winter. Continuous repairs and Western aid staved off a total breakdown ...

Students in Greece will revive Eratosthenes' calculation of the Earth’s radius and circumference, a remarkable experiment in ...

Earth-size planet (HD 137010 b) found orbiting a nearby star once a year, making it a promising target for finding life.

In this issue of our environmental newsletter, we look at a new way to measure and manage your climate impact; find out why scientists are concerned about a plan to launch a million satellites; and ...

"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

Scientists can now calculate how shared reality emerges from the strange quantum world where particles can exist in many ...

A simple explanation of Earth’s rotation speed, how it creates day and night, and how scientists measure the planet’s motion.

Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Launching in 2027, a new NASA space instrument with ties to the University of Colorado Boulder will begin orbiting Earth to track the amount of energy that’s leaving the planet daily. The space ...

When we want to weigh something, the process is simple. We place it on a weighing machine or on a traditional balance. The number appears and we insta.

The NASA DART spacecraft shifted the orbits of two asteroids around the sun after intentionally crashing into one of them.