The colored circle represents the hologram, out of which the knotted optical vortex emerges. Credit: University of Bristol A quarter century ago, physicist Juan Maldacena proposed the AdS/CFT correspondence, an…
Category: Planetary Science
Ancient stars could make elements with more than 260 protons
R-process nucleosynthesis. Credit: Lawrence Livermore National Laboratory The first stars of the universe were monstrous beasts. Comprised only of hydrogen and helium, they could be 300 times more massive than…
Hubble sights a galaxy with ‘forbidden’ light
This NASA Hubble Space Telescope image features a bright spiral galaxy known as MCG-01-24-014, which is located about 275 million light-years from Earth. Credit: ESA/Hubble & NASA, C. Kilpatrick This…
NASA astronauts test SpaceX elevator concept for Artemis lunar lander
Credit: SpaceX NASA astronauts Nicole Mann and Doug “Wheels” Wheelock participated in a recent test of a sub-scale mockup elevator for SpaceX’s Starship human landing system that will be used…
International astronaut will be invited on future NASA moon landing
Artemis II crew members from left, Reid Wiseman, Victor Glover, Christina Hammock Koch, and Jeremy Hansen speak to members of the media outside the West Wing of the White House…
Supercomputer provides new suite of Lyman-α forest simulations for illustrating large-scale structure of universe
TACC’s Frontera supercomputer helped astronomers develop PRIYA, the largest suite of hydrodynamic simulations yet made of large-scale structures in the universe. Example Lyman-α forest spectra from quasar light and corresponding…
Trying to communicate with whales is like talking to extraterrestrials
Credit: Pixabay/CC0 Public Domain Communicating between species isn’t something that only has to take place between space-faring civilizations. There are plenty of species here on our home planet that communicate…
Breakthrough Listen scans entire galaxies for signals from extremely advanced civilizations
Sky map of galaxy targets. The colored squares indicate whether the full source is covered by the GBT beam at all four bands (see Table 1), three bands, two, one,…
