View larger. | Artist’s concept of an ancient ocean on Mars. A new study of data…
Category: Earth Sky
Red monsters were massive galaxies in the early universe
Watch as EarthSky’s Will Triggs talks about red monsters, massive galaxies in the early universe. The…
MOND and more. Does the universe need a rethink?
Our current cosmology says cold dark matter helped small galaxies form in the early universe. But…
1st intentional signal to space sent by Arecibo 50 years ago
On November 16, 1974, the Arecibo Observatory beamed the 1st intentional signal to space. Image via…
Estimating the odds for intelligent life in the multiverse
This Hubble Space Telescope image captures a triple-star system, which can host potentially habitable planets. Our…
Uranus mysteries solved with Voyager data
NASA’s Voyager 2 captured this image of Uranus while flying by the ice giant in 1986.…
New! Measure black holes with light echoes
In this artist’s concept, a black hole’s intense gravity distorts the light coming from the Milky…
Ancient outer solar system had a weak magnetic field
View larger. | Artist’s concept of the gas and dust in a newly-forming planetary system such…
A Fermi Paradox solution with Alan Stern
Join us LIVE Monday, November 11, to hear planetary scientist Alan Stern – leader of the…
Do the giant rings of exoplanet J1407b rotate backward?
View larger. | Artist’s concept of the giant exoplanet J1407b and its immense ring system. A…