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Scientists find evidence for theorized gargantuan star explosions

Scientists find evidence for theorized gargantuan star explosions

By Will Dunham WASHINGTON, April 3 (Reuters) - A supernova - the explosive death of a star - is always violent, blasting material into space while typically leaving behind a compact stellar remnant like a neutron star or black hole.

New Gravitational Methods Aim to Resolve Hubble Tension in Cosmology

New Gravitational Methods Aim to Resolve Hubble Tension in Cosmology

Two independent groups of astronomers are developing new methods to measure the Hubble constant, a parameter describing the universe's expansion rate, to address the Hubble tension. This discrepancy arises from conflicting results produced by existing measurement techniques. One group, based in Germany, is using gravitationally-lensed supernovae, while a U.S. team is employing gravitational waves. The German team observed a superluminous supernova, SN 2025wny, which can be studied using ground-based telescopes. This allows for time-delay cosmography, a method that calculates the Hubble constant by measuring the time difference in light paths deflected by massive galaxies. Meanwhile, the U.S. team is exploring the gravitational-wave background, which could provide a lower limit on the Hubble constant.

Scientists Discover Twisted Magnetic Field of Saturn, Implications for Space Exploration

Scientists Discover Twisted Magnetic Field of Saturn, Implications for Space Exploration

Recent research involving scientists from University College London has revealed that Saturn's magnetic field is uneven, unlike Earth's symmetrical magnetic bubble. This distortion is attributed to the planet's rapid rotation and the substantial amount of material it drags through space. The findings, published in Nature Communications, are based on six years of observations from NASA's Cassini mission. Researchers identified the exact position of Saturn's magnetic cusp, a region where magnetic field lines bend back toward the poles, allowing charged particles to funnel into the atmosphere. The cusp is consistently shifted to one side, appearing displaced to the right when viewed from the Sun. This offset is linked to Saturn's fast rotation and the dense plasma environment surrounding it, primarily from gases released by its moons, especially Enceladus.

NASA's Artemis II Launches, Marking Historic Return to Lunar Missions

NASA's Artemis II Launches, Marking Historic Return to Lunar Missions

NASA has successfully launched Artemis II, marking the first crewed lunar mission since 1972. The mission, which took off from the Kennedy Space Center, involves four astronauts who will loop around the far side of the moon. This mission is a significant step in NASA's Artemis program, which aims to establish a sustainable human presence on the moon by the end of the decade. The launch is a pivotal moment in space exploration, as it represents a renewed commitment to lunar exploration and the potential for future missions to Mars.

NASA Astronaut Victor Glover Reflects on Space and Social Issues

NASA Astronaut Victor Glover Reflects on Space and Social Issues

NASA astronaut Victor Glover, set to pilot the Artemis 2 mission to the moon, has shared insights into his personal reflections on space exploration and social issues. Glover, who will be the first African American to orbit the moon, listens to Gil Scott-Heron's 'Whitey on the Moon' and Marvin Gaye's 'Make Me Wanna Holler' for perspective on the socio-economic challenges faced by Black Americans during the Apollo era. These songs remind him of the disparities that existed during the space race and the importance of acknowledging diverse perspectives in space exploration.

NASA Unveils Artemis II Menu Featuring Shelf-Stable Foods for Lunar Mission

NASA Unveils Artemis II Menu Featuring Shelf-Stable Foods for Lunar Mission

NASA has revealed the menu for the Artemis II mission, a lunar flyby scheduled to last 10 days. The menu includes 189 shelf-stable food items designed to meet nutritional needs and ensure safety in microgravity conditions. The meals are pre-packaged and either ready-to-eat or require rehydration using onboard water systems, as refrigeration is not available. The menu features a variety of options such as vegetable quiche, couscous with nuts, mango-peach smoothies, and barbecued beef brisket. Staples like tortillas are included to minimize crumbs in zero gravity. The menu aims to balance performance and comfort by combining structured meals with snacks and flavor enhancers like hot sauce, nuts, cookies, and chocolate. Astronauts select their preferences pre-flight to ensure variety throughout the mission. Food is grouped into multi-day packs and consumed using compact reheating systems, reflecting the constraints of storage, weight, and preparation inside the Orion spacecraft.

Artemis II Astronauts Set Course for the Moon After Exiting Earth's Orbit

Artemis II Astronauts Set Course for the Moon After Exiting Earth's Orbit

The Artemis II mission has successfully set its course for the Moon after leaving Earth's orbit. The mission, which is part of NASA's broader Artemis program, involves a crew of astronauts who are now on their way to the far side of the Moon. This mission is a critical step in NASA's plan to return humans to the lunar surface and establish a sustainable presence there. The crew's journey marks a significant milestone in space exploration, as it tests the capabilities of the Orion spacecraft and the readiness of the crew for deep space travel. The mission's success so far underscores the progress made in human spaceflight and the potential for future lunar and Mars exploration.

Australia's Parkes Telescope Supports NASA's Artemis II Lunar Mission

Australia's Parkes Telescope Supports NASA's Artemis II Lunar Mission

Australia's Parkes radio telescope, known as 'The Dish,' is playing a crucial role in tracking NASA's Artemis II mission, the first crewed lunar mission in over 50 years. The telescope, along with the Canberra Deep Space Communication Complex, is part of NASA's Deep Space Network, providing vital communication support for the mission. The Artemis II mission involves a crew of four astronauts who will orbit the Earth before heading to the moon and returning to Earth. This mission is a significant step towards establishing a sustainable human presence on the moon.

Elkins Park Skywatchers Host Artemis II Watch Party to Inspire Community

Elkins Park Skywatchers Host Artemis II Watch Party to Inspire Community

The Elkins Park Skywatchers organized a watch party at Creekside Market and Tap to observe the launch of the Artemis II rocket. The mission, involving four astronauts, aims to circumnavigate the moon for the first time in over 50 years. The Skywatchers club, co-founded by Hector Ybe and Jason Barnhart, regularly hosts astronomy-related events to engage the community. The club's activities include sky tours, observation nights, and special events for celestial occurrences. Recently, the club was accepted into NASA's 'Night Sky Network,' enhancing its educational outreach.

Artemis Orion Spacecraft Successfully Completes Docking Demonstration, Advancing NASA's Lunar Mission Plans

Artemis Orion Spacecraft Successfully Completes Docking Demonstration, Advancing NASA's Lunar Mission Plans

The Artemis 2 mission achieved a significant milestone as the crew successfully conducted a manual docking demonstration with the Orion spacecraft. This test involved using the detached Interim Cryogenic Propulsion Stage (ICPS) as a target to simulate docking maneuvers. Pilot Victor Glover and Commander Reid Wiseman executed the exercise, which relied on the spacecraft's onboard navigation sensors and reaction control thrusters. The demonstration provided valuable data on the spacecraft's handling and maneuverability, essential for future missions that will involve docking with other spacecraft in lunar orbit.

NASA Crew Conducts Brain and Eye Studies, Advances Life Support Technology on ISS

NASA Crew Conducts Brain and Eye Studies, Advances Life Support Technology on ISS

NASA's Expedition 74 crew aboard the International Space Station (ISS) focused on brain and eye studies and advanced life support technology. NASA flight engineers Jack Hathaway and Chris Williams explored how the brain processes balance and orientation in microgravity, using visual signals and high-speed video recordings. The study aims to understand structural changes in astronauts' sense of motion during long-term spaceflight. Additionally, Williams conducted an eye exam on Hathaway, with real-time imaging viewed by doctors on Earth. NASA astronaut Jessica Meir demonstrated humidity removal technology, crucial for regenerative life-support systems in future deep-space missions. ESA's Sophie Adenot installed a Metal 3D Printer, testing its ability to print parts in space, reducing the need for spare parts shipments.

Los astronautas de Artemis II encienden motores hacia la Luna

Los astronautas de Artemis II encienden motores hacia la Luna

Los cuatro astronautas del programa Artemis II encendieron el motor de su nave para abandonar la órbita terrestre, donde estuvieron por casi un día, y poner rumbo hacia la Luna este jueves, una hazaña que la NASA no realizaba hace más de medio siglo.