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Why do stars twinkle, but planets don’t?
Seen from space, both stars and planets shine steadily, but seen from Earth, stars twinkle while planets (usually) do not. Here’s why.
June 28, 2026
Asteroid Day to be observed worldwide on June 30
The annual Asteroid Day program is in Luxembourg on June 26 and 27, 2026. That's ahead of the internationally recognized Asteroid Day June 30.
June 26, 2026
Voyager 1 to reach 1 light-day from Earth on November 18
NASA said on June 17, 2026, that Voyager 1 will reach 1 light-day from Earth soon. It estimates the spacecraft will reach that mark on November 18, 2026.
June 26, 2026
Peanut-shaped asteroid wobbles in 2 directions
New analysis shows that a peanut-shaped asteroid wobbles in space in 2 directions. Lucy spacecraft now continues its journey toward Jupiter’s Trojans.
June 25, 2026
Comet 3I/ATLAS over 10 billion years old, Webb finds
The Webb space telescope has found chemical clues to the origin of interstellar comet 3I/ATLAS. It appears to be several times older than our solar system.
June 24, 2026
Meet the exotic Pink Planet with salty clouds
New observations by the Webb space telescope of the giant exoplanet GJ504b - aka the Pink Planet - show that it has clouds made of salt.
June 23, 2026
Asteroid or comet? Meteor or meteorite? Answers here
A bright light zips through the night sky. But what is it? Asteroid or comet? Find the answers here and share your knowledge with your friends and family.
June 23, 2026
Nancy Grace Roman Space Telescope arrives at space center
The Nancy Grace Roman Space Telescope has now arrived at Kennedy Space Center. It will be prepped for launch this summer, 8 months ahead of schedule.
June 23, 2026
Artemis missions target South Pole–Aitken basin on the moon
Two new studies examine the South Pole–Aitken basin on the moon. This region is a future landing site for Artemis astronauts.
June 21, 2026
Does the North Star ever move in the sky?
The North Star is a symbol for constancy. But a video or star trails image reveals that it makes its own little circle around the sky's north pole every day.
June 19, 2026
