The cosmic ray detector that includes 507 ground scintillator stations, covering an extensive detection area of 700 square kilometers in Utah, USA. On May 27, 2023, scientists discovered a particle with an enormous energy level of 244 EeV.
Unlike other distant galaxies that have been discovered, which appear as small red dots, the two new galaxies are large and have an unusual appearance - one resembling a peanut and the other a fluffy ball, indicating the diversity of galaxies in the early universe. According to the speed and direction of their distance, today they are beyond our line of sight
The European Space Agency's Gaia mission discovered over half a million new stars, tagged 150,000 asteroids, and identified 380 cosmic lenses. These discoveries advance our understanding of the universe, setting the stage for the expected release of Gaia DR4 data in 2025
Researchers from the Australian National University have developed a model that is the most comprehensive view of the history of the universe. The study highlights the change that the universe underwent from the moment of its formation 13.8 billion years ago to its current state, full of objects such as protons, atoms and galaxies
New research has improved the accuracy of the parameters that control the expansion of the universe. More precise parameters will help astronomers determine how the universe grew to its current state, and how it will evolve in the future.
It has been 30 years since a group of scientists led by Carl Sagan found evidence of life on Earth using data from instruments aboard NASA's Galileo space probe and only combining instruments while ignoring existing knowledge made this possible
Researchers have found that the star cluster IRS13 near the supermassive black hole SagittariusA* at the center of our galaxy is much younger than predicted
The TESS space telescope discovered a planet that survived a merger between two stars as the merged star swelled to become a red giant
Professor Zvi Piren, the holder of the Schwartzman Chair at the Rakah Institute of Physics at the Hebrew University and Professor Amir Levinson from Tel Aviv University will take part in a research group of the prestigious Simmons Foundation as part of an international cooperation in mathematics and physical sciences for the study of neutron stars and black holes
About 50 million years after the big bang, we will be able to measure the evolution of the universe and its composition by measuring radio waves from the moon
A Sun-like star located in a galaxy roughly 500 million light-years away is being gradually devoured by a black hole, shedding a mass equal to three Earths on each close pass.
Herbig-harrows are luminous regions surrounding young stars. They form when stellar winds or jets of gas ejected from these stars create shock waves that collide at high speeds with nearby gas and dust.
The unusual jet structure reveals unique features of the relatively nearby gamma-ray burst that can be studied in better detail than the gamma-wave bursts discovered so far
A new spacecraft called XRISM (X-ray Imaging and Spectroscopy Mission, pronounced "charism") is designed to separate high-energy light into the equivalent of an X-ray rainbow
This end-of-life phase of red giant stars is relatively short, and the celestial structures that form around them are rare, so the Tobi Pitcher Nebula is an excellent example of a case study in the evolution of a star
The brown dwarf is part of a new pair system that may advance our understanding of the evolution of stars and planets under extreme radiation conditions
"The effect of gravitational waves on pulsars is very weak and difficult to detect, but we built the credibility of the findings over time as we collected more data," said Caterina Cazziano, NANOGrav team member and senior lecturer at Caltech.