Fly along with Earth’s shadow in a video depicting the path of the August 21, 2017 total eclipse of the sun, first eclipse over the continental U.S. since 1979.
A new study shows that we humans can help maintain healthy forests by focusing conservation efforts on the protection of animal pollinators and seed dispersers.
Animals that help pollinate plants and spread their seeds are critical to keeping forests healthy. Photo via Eike Lena Neuschulz/ AlphaGalileo.
Computer models, and observations of our galaxy and others, suggested a Milky Way X, made of stars. An analysis of data from the WISE space telescope reveals it.
WISE all-sky image of Milky Way galaxy. The circle is centered on the galaxy's central region. The inset shows an enhanced version of the same region that shows a clearer view of the X-shaped structure. Image via NASA/JPL-Caltech; D. Lang/Dunlap Institute.
Twilight is the time of day between daylight and darkness. Astronomers, the experts on nighttime, recognize three kinds of twilight.
After sunset. Photo: Loire Vignolle-Moritz
The 6-month period from January to June was our planet’s warmest half-year in the modern temperature record, which dates to 1880.
Mare Imbrium basin on the moon – the Man in the Moon’s right eye – might have been made by a protoplanet-sized impact, 3.8 billion years ago.
The lunar Mare Imbrium, or Sea of Rains, via Pete Lawrence's Moon guides.
One of the prettiest stories in all skylore surrounds this star. “On the 7th night of the 7th moon … “
40th anniversary of the first fully successful soft landing on Mars’ surface, by the Viking 1 spacecraft. First images from Mars’ surface, here.
View full image. | First photograph ever taken from surface of Mars, by the Viking 1 lander shortly after it touched down on July 20, 1976. Image via NASA.
Today is the 47th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.
The world watched on television as Neil Armstrong took the first steps on the moon's surface on July 20, 1969. It was the first time humans walked another world. As he stepped onto the lunar surface, Armstrong said, "That is one small step for [a] man, one giant leap for mankind."