Venus is moving toward a dramatic finale in early 2025, when it will dazzle as the “evening star” after sunset. Here’s when to catch it at its brilliant best.
Category: space – Page 127
Scientists take a closer look at rare particles called hypernuclei
Scientists use cutting-edge techniques to study rare atomic systems called hypernuclei shedding light on subatomic forces and neutron stars.
Scientists have made an important discovery in the world of particle physics by exploring hypernuclei — rare, short-lived atomic systems that include mysterious particles known as hyperons. Unlike protons and neutrons composed of “up” and “down” quarks, which make up the nuclei of ordinary atoms, hyperons contain at least one “strange” quark. These unusual particles could help unravel mysteries not only about the interactions between subatomic particles but also about the extreme conditions inside neutron stars.
“It is extremely important to understand what happens when a nucleus becomes a hypernucleus, which means when one nucleon is replaced by a hyperon,” Jean-Marc Richard, a professor at the University of Lyon, who was not involved in the study, said in an email.
NASA’s Parker Solar Probe Survives Fiery Sun Flyby at 430,000 MPH
Racing closer to the Sun than ever before, the Parker Solar Probe is unlocking the secrets of our solar system’s fiery heart.
NASAs Parker Solar Probe has successfully transmitted a beacon signal back to Earth, confirming it is in good health and functioning normally after its record-breaking close approach to the Sun.
The mission operations team at Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, received the signal just before midnight EST on December 26. During its closest approach on December 24, the spacecraft traveled at an astonishing 430,000 miles per hour and came within 3.8 million miles of the Sun’s surface, making it the closest any human-made object has ever been to our star.
Study sheds more light on the nature of compact symmetric object DA 362
Indian astronomers have performed a multiwavelength study of a gamma-ray emitting compact symmetric object known as DA 362. Results of the study, presented in a research paper published December 17 on the pre-print server arXiv, yield more insights into the nature of this enigmatic object.
Compact symmetric objects (CSOs) are young jetted active galactic nuclei (AGN) with an overall projected size below 3,300 light years. Although CSOs are still not well investigated, observations found that they showcase symmetric radio morphologies and are likely to be in the early stages of their evolution with kinematic ages smaller than a few thousand years. To date, only four CSOs have been found to emit gamma-rays.
The newest gamma-ray emitting CSO is DA 362, also known as B2 1413+34. It was initially classified as a blazar candidate of uncertain type, associated with a gamma-ray source designated 4FGL J1416.0+3443.
Millinovae Illuminate the Dark Corners of the Universe
A groundbreaking discovery by an international team of astronomers has revealed a completely new class of cosmic X-ray sources.
Led by researchers from the Astronomical Observatory of the University of Warsaw, this finding, published in Astrophysical Journal Letters, is shedding light on mysterious celestial phenomena.
Cosmic X-ray Phenomena
Astronauts Share Most Breathtaking Images of Earth From Space in 2024
Every year, the International Space Station produces some of the world’s best photography.
Astronauts tend to be technically skilled with a camera, yes. Many of them are engineers, after all.
Their real photography advantage, though, is the glorious view from space as they circle our planet every 90 minutes.
20 Emerging Technologies That Will Blow Your Mind
Metaverse.
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AR Healthcare.
Space Tourism and Colonization.
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Bioprinting.
https://www.youtube.com/watch?v=P7THO95V6Lo.
Mirroring Reality Digital Realm.
https://www.youtube.com/watch?v=qWz9fA7RUyc.
New Planet in Kepler-51 System discovered using James Webb Space Telescope, JWST
The unusual system of three ‘super puff’ planets has at least one more planet, revealed by its gravitational tug on other planets. An unusual planetary system with three known ultra-low density “super-puff” planets has at least one more planet, according to new research led by researchers from Penn State and Osaka University. The research team set out to study Kepler-51d, the third planet in the system, with NASA’s James Webb Space Telescope (JWST) but almost missed their chance when the planet unexpectedly passed in front of its star two hours earlier than models predicted. After scrutinizing new and archival data from a variety of space and Earth-based telescopes, the researchers found that the best explanation is the presence of a fourth planet, whose gravitational pull impacts the orbits of the other planets in the system.
The new planet’s discovery is detailed in a paper appearing Dec. 3 in the Astronomical Journal.
“Super puff planets are very unusual in that they have very low mass and low density,” said Jessica Libby-Roberts, Center for Exoplanets and Habitable Worlds Postdoctoral Fellow at Penn State and co-first author of the paper. “The three previously known planets that orbit the star, Kepler-51, are about the size of Saturn but only a few times the mass of Earth, resulting in a density like cotton candy. We think they have tiny cores and huge atmospheres of hydrogen of helium, but how these strange planets formed and how their atmospheres haven’t been blown away by the intense radiation of their young star has remained a mystery. We planned to use JWST to study one of these planets to help answer these questions, but now we have to explain a fourth low-mass planet in the system!”