A lunar tetrad – four total lunar eclipses in a row – began on the night of April 14-15. The next one will be on the night of October 7-8.
Slooh.com invites stargazers worldwide for an online viewing of the total eclipse of the moon on October 8. Deborah Byrd will be on hand as a special guest.
Between the 1920s and 1950s, a perfect storm of population growth, sex and railway links let HIV to spread from Kinshasa in Africa, across the globe.
The Worldwatch Institute quantifies the steady decline of nuclear energy’s share of global power production, and renewable energy’s increased share.
New imaging technology provides unprecedented 3-D views of an intact brain’s neural structure and its vast internal connections.
Experts used “scenarios” to suggest global human population will stabilize around 9 billion by about 2050. A new statistical analysis tells a different story.
Arctic sea ice continued its long-term decline in 2014. Meanwhile, sea ice on the other side of the planet was headed in the opposite direction. Why?
Mass and energy are interchangeable.
Northwestern Florida was thought to get hit by a hurricane with a five-meter (16-foot) storm surge every 400 years. In fact, the frequency may be every 40 years.
Astronomical imagery often figured in the poetry of Pablo Neruda. Today, with the help of Michael West of Maria Mitchell Observatory, we honor that connection.