Without a revolution in physics, the very birth of our universe will remain forever hidden from us. Introduction In 2011, scientists set a new distance record, seeing a burst of gamma-rays from a star that exploded when the universe was only 520 million years old. The light from this distant source has been travelling for[…]
It all started with the realization that we can describe the dynamics of the universe within a mathematical framework. Introduction In questioning the fundamental nature of the universe, cosmology regularly grabs the public’s attention. But in an era in which we are observing deeper and more widely than ever before, our knowledge of the make-up[…]
The 2020s will use increasingly complex technology to ramp up our efforts to understand more about the Universe. Introduction We humans are a curious, questing lot, and the 2020s will see us continue to observe the Universe around us, trying to understand more about fundamental particles, forces, objects and relationships from both ground and space-based[…]
NESSI views the galaxy in infrared light, which is invisible to the human eye. By Elizabeth Landau The darkness surrounding the Hale Telescope breaks with a sliver of blue sky as the dome begins to open, screeching with metallic, sci-fi-like sounds atop San Diego County’s Palomar Mountain. The historic observatory smells of the oil pumped[…]
A virtual tour through our little space in the universe. Originally published by ESRI, republished with embed permission for educational, non-commercial purposes.
New analyses of the rings reveal how and when they were made, from what and whether they’ll last. Introduction Many dream of what they would do had they a time machine. Some would travel 100 million years back in time, when dinosaurs roamed the Earth. Not many, though, would think of taking a telescope with[…]
We’re not exactly sure what the universe was up to in the first few nano-moments into the big bang. One of the most remarkable things a human being can say is this: about 13.77 billion years ago, our entire observable universe was compressed into the size of a peach and had a temperature of over[…]
About 85% of all matter in the universe consists of a mysterious, invisible, and as-of-yet unidentified substance dubbed “dark matter.” Everything you have ever touched, seen, or tasted; the air you breathe; the ground on which you stand; and the constituents of your body all consist of a type of matter that is only a[…]