After six months of speculation, we finally know what’s building these bizarre silk structures in the Amazon: a spider! But its precise identity is still a mystery that scientists are scrambling to solve.
What if the universe had no beginning, and time stretched back infinitely without a big bang to start things off? That's one possible consequence of an idea called "rainbow gravity," so-named because it posits that gravity's effects on spacetime are felt differently by different wavelengths of light, aka different colors in the rainbow.
A study by GOP Senate staffers finds that federal officials repeatedly fail to take basic preventive actions.
from the article: "The message broadcast in several states last winter was equal parts alarming and absurd: “Civil authorities in your area have reported that the bodies of the dead are rising from their graves and attacking the living. . . . Do not attempt to approach or apprehend these bodies, as they are considered extremely dangerous.” The reported zombie invasion was not something out of the “The Walking Dead.” It was the federal Emergency Alert System under control of hackers — who exploited weaknesses that are disturbingly common in many critical systems throughout government..."
The 24 year old Pavel Sapozhnikov tries to reproduce the lifestyle of the Russian ancestors in the year 1100 and lives an ascetic life with very little human contact by participating in one of the most extreme sociopsychological experiments in...
The Crab Nebula and the pulsar at its center are endlessly fascinating. The pulsar is a neutron star, with the same mass as our Sun but only the size of a city. It rotates 30 times per second, flashing like a lighthouse as it does so. It is very nearly, but not quite, an ideal clock, without any outside influence to disturb it. At Jodrell Bank Observatory, astronomers have been watching the pulsar for over 40 years, timing it without missing a beat while it rotated more than 30 billion times. Putting together the results from our radio observations with data from the opposite end of the electromagnetic spectrum has proved remarkably rewarding.
Worlds around other worlds may be habitable. Even as the number of planets known beyond the Solar System climbs above 1,000, the discovery of an accompanying exomoon has remained elusive — until, perhaps, now.
It is one of the most famous photos ever taken -- the Earth rising over the moon's horizon as seen firsthand by the 1968 Apollo 8 crew. And yet, more than four decades later, details about how the photo was captured are still being uncovered.
Theoretical astrophysicist Abraham Loeb of Harvard University has uploaded a paper he's written to the preprint server arXiv, in which he suggests that conditions shortly after the Big Bang may have been just right for life to appear in some parts of the universe—for just a short time.