Hear the word “pulsar” and wonder what it is? Take 95 seconds to watch this video from NASA Astrophysics.
Posts by EarthSky
On Tuesday, the Mars rover Opportunity completed a marathon – 26.2 miles (42.195 kilometers). Its finish time? Eleven years and 2 months.
Jupiter may have swept through the early solar system like a wrecking ball, destroying a first generation of inner planets before retreating into its current orbit.
Web users help support the popular science website, citing “the value and impact of science education,” “science and beauty” and “sharing the wonder” as reasons.
Researchers calculate that billions of stars in our Milky Way galaxy have 1-3 planets in the habitable zone, where there may be liquid water and life.
A new long-term earthquake forecast for California by the U.S. Geological Survey revises estimates for the chances of large earthquakes over the next several decades.
An ocean below the surface of Jupiter’s large moon Ganymede has more water than all earthly oceans, according to evidence from the Hubble Space Telescope.
While capping off the science of previous centuries, Albert Einstein changed our notions of space, time and matter … and launched modern physics.
What are the Ides of March? We in modern times probably wouldn’t know, if it weren’t for William Shakespeare.
William Herschel noticed while surveying stars that one object moved apart from the star background. It was the first planet discovered since ancient times.