Category Archives: Phys.org
Saturday Citations: The universe doesn’t care about your precious standard model

This week, ALMA researchers reported the discovery of oxygen in the most distant known galaxy. Geologists believe unusual structures in rock in the desert regions of Namibia, Oman and Saudia Arabia may be evidence of an unknown microorganism. And a group of physicists may have generated a tiny charge of electricity using the Earth’s rotational energy. But the biggest story by far is the second release of data from the DESI survey of the universe, which could upend the standard model:
SPHEREx telescope aims to unlock secrets of universe’s first moments

On March 11, NASA launched a new space telescope into orbit to explore the origins of the universe. The mission will use sophisticated software, developed at the Arizona Cosmology Lab at the University of Arizona, to analyze data and help astronomers understand what happened in the first trillionth of a second after the Big Bang.
NASA to launch three rockets from Alaska in single Aurora experiment
Chang’e-6 samples suggest 4.25-billion-year-old impact formed moon’s South Pole–Aitken basin

Scientists have long sought to determine the age of the moon’s South Pole–Aitken (SPA) basin, the largest and oldest known impact crater on the lunar surface. Recently, a research team led by Prof. Chen Yi from the Institute of Geology and Geophysics at the Chinese Academy of Sciences has dated the formation of the basin to 4.25 billion years ago by analyzing the first-ever rock samples returned from the SPA basin by China’s Chang’e-6 mission.
How warp drives don’t break relativity

Somehow, we all know how a warp drive works. You’re in your spaceship and you need to get to another star. So you press a button or flip a switch or pull a lever and your ship just goes fast. Like really fast. Faster than the speed of light. Fast enough that you can get to your next destination by the end of the next commercial break.
A simulated universe works better when dark energy changes over time

Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, driven by the unknown force that we’ve named Dark Energy. Dark Energy is also accelerating the rate of expansion. If scientists could figure out why, it would open up a whole new avenue of understanding.
A NASA spacecraft will make another close pass of the sun
Cosmic anomaly hints at frightening future for Milky Way
NRL’s narrow field imager launches on NASA’s PUNCH mission
Hubble sees a spiral and a star in the constellation Virgo

This NASA/ESA Hubble Space Telescope image features a sparkling spiral galaxy paired with a prominent star, both in the constellation Virgo. While the galaxy and the star appear to be close to one another, even overlapping, they’re actually a great distance apart. The star, marked with four long diffraction spikes, is in our own galaxy. It’s just 7,109 light-years away from Earth. The galaxy, named NGC 4900, lies about 45 million light-years from Earth.
Astronomers discover 2,674 dwarf galaxies using Euclid telescope

ESA’s Euclid space telescope has been providing valuable data from the depths of space for almost two years. With its help, the largest and most accurate 3D map of the universe to date is to be created, with billions of stars and galaxies. The data from Euclid is analyzed by the international Euclid consortium, which also includes the research teams of Francine Marleau and Tim Schrabback at the University of Innsbruck.
Concept for interstellar object encounters developed, then simulated using a spacecraft swarm

Interstellar objects are among the last unexplored classes of solar system objects, holding tantalizing information about primitive materials from exoplanetary star systems. They pass through our solar system only once in their lifetime at speeds of tens of kilometers per second, making them elusive.
Astro-challenge: Following Venus from dusk until dawn
Venus passes between the Earth and sun this weekend—but don’t try to look for it
Oxygen discovered in most distant known galaxy

Two different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early universe.