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Are the TRAPPIST-1 planets water-rich? New study says maybe
A new study suggests the 7 Earth-sized TRAPPIST-1 exoplanets could have widely varying amounts of water, ranging from very little to more than Earth.
June 1, 2025
Can Dyson spheres be stable? New research says yes
A new study says that Dyson spheres - and, similarly, ringworlds - could be stable in a two-star system. Read more about them and their impact on SETI.
May 29, 2025
Tantalizing dark streaks on Mars are bone-dry, study says
What are the mysterious dark streaks on Mars seen flowing down steep slopes? A new study using machine learning suggests they are caused by dry dust, not water.
May 29, 2025
What is this weird sphere in space astronomers found?
An international team of astronomers has found an odd sphere in space. The almost perfectly round bubble-like object is most likely a supernova remnant.
May 28, 2025
Strange double starlight pulses revealed in new SETI search
A SETI search of 1,300 stars for optical alien signals has found something odd: two fast, identical starlight pulses from a sunlike star 100 light-years away.
May 24, 2025
Stargazing in national parks around the world
Stargazing in national parks ... yes! Increasing light pollution in the United States makes national parks some of the last dark refuges.
May 22, 2025
New minor planet found in the distant solar system
The IAU's Minor Planet Center announced a new minor planet on May 21, 2025, which is fairly large and has a huge, irregular orbit around the sun.
May 22, 2025
New images show a pair of galaxies in a deep-space battle
For the first time, astronomers have observed a pair of galaxies where one is piercing the other with intense radiation from a quasar powered by a black hole.
May 21, 2025
Frigid Titan has soaring, bubbling clouds with unusual rains
Astronomers have seen convective clouds in the northern regions of Saturn's moon Titan for the 1st time. The methane rains replenish Titan's lakes and seas.
May 21, 2025
Active tectonics on Venus? Old data reveal new clues
Are there active tectonics on Venus? A new study of the planet's enigmatic coronae, based on old data from NASA's Magellan mission, says yes.
May 18, 2025
