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New three-dimensional (3D) models of objects in space have been released by NASA’s Chandra X-ray Observatory. These 3D models allow people to explore—and print—examples of stars in the early and end stages of their lives. They also provide scientists with new avenues to investigate scientific questions and find insights about the objects they represent. Go […] Gamma-ray bursts (GRBs) are the most energetic events ever observed in the universe. These powerful outbursts can shine a quintillion (1018) times brighter than the sun. Since they were first detected in 1967 by the Vela 3 and 4 satellites, which were designed to detect nuclear detonations, astronomers have been searching for the origin of […] Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious. Go to Source Astronomers from Swinburne University in Australia and elsewhere have employed the Keck II telescope to investigate the globular cluster system of an ultra-diffuse galaxy designated NGC5846_UDG1. Results of the observations, published April 4 on the arXiv pre-print server , could help us better understand the nature of this galaxy. Go to Source […] The detection of dark matter, the elusive type of matter predicted to make up most of the universe’s mass, is a long-standing goal in the field of astrophysics. As dark matter does not emit, reflect or absorb light, it cannot be observed using conventional experimental methods. Go to Source Our sun, like all stars, is made mostly of hydrogen and helium. They are by far the most abundant elements, formed in the early moments of the universe. But our star is also rich in other elements astronomers call metals: carbon, nitrogen, iron, gold, and more. These elements were created through astrophysical processes, such as […] A bright object, initially appearing to be a meteorite, lit up the skies over Mexico’s capital around 3 a.m. Wednesday, stretching over plains, volcanoes and small towns. Go to Source Scientists are currently planning two major space missions to search for life in space: NASA’s Project HWO and Project LIFE, led by ETH Zurich. If one of these missions were to discover life on an exoplanet, i.e., a planet outside of our solar system, this would be a sensational finding with implications far beyond science […] Why do comets and their meteoroid streams weave in and out of Earth’s orbit and their orbits disperse over time? In a paper published in the journal Icarus, two SETI Institute researchers show that this is not due to the random pull of the planets, but rather the kick they receive from a moving sun. […] How can we successfully collect and return samples from Mercury and Venus to Earth? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a pair of researchers from the California Institute of Technology (Caltech) discussed how future missions could successfully conduct sample return missions from […] There is a large diversity in the chemical composition of astronomical objects such as planets, comets, circumstellar envelopes, or galactic gas clouds. One great challenge in astrochemistry is to understand in detail how this diversity arises from the cosmic backdrop of the cycling of matter between star birth and destruction, with molecules forming, reacting and […] Astronomers have long been puzzled by two strange phenomena at the heart of our galaxy. First, the gas in the central molecular zone (CMZ), a dense and chaotic region near the Milky Way’s core, appears to be ionized (meaning it is electrically charged because it has lost electrons) at a surprisingly high rate. Go to […] As part of ESA/Hubble’s 35th anniversary celebrations, the European Space Agency (ESA) is sharing a new image series revisiting stunning, previously released Hubble targets with the addition of the latest Hubble data and new processing techniques. Go to Source A team of researchers at the University of Oxford have uncovered crucial evidence for the origin of water on Earth. Using a rare type of meteorite, known as an enstatite chondrite, which has a composition analogous to that of the early Earth (4.55 billion years ago), they have found a source of hydrogen which would […] This mission will pave the way for groundbreaking observations of everything from petroleum reserves to global supplies of fresh water. Go to Source |
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