Astronomy

Earth’s Internal Core Rotation May Have Paused and Perhaps Reversed

Earth's inner core. Credit: Rost-9D/iStockThe rotation of the Earth's solid inner core may have recently stopped briefly as well as could be reversing, according to a study released in Nature Geoscience this week. The authors show proof that oscillation in the rotation of the internal core coincides with periodic changes in the Earth's surface...

Proof Discovered of Tidal Effect on the Plasmasphere

The characteristics of lunar tidal wave in the plasmapause. Credit: Nature Physics (2023). DOI: 10.1038/s41567-022-01882-8A worldwide team of space scientists reports that the moon exerts a tidal effect on the plasmasphere. For their paper released in the journal Nature Physics, the group used information from multiple spacecraft over an almost 40-year period to gauge tidal perturbations...

New Measurement Of Stellar Neutron Source Reaction Fixes Long-Standing Discrepancies

Artistic representation of the underground measurement of the 13C(α,n)16O stellar neutron source reaction. Credit: IMPThe Jinping Underground Nuclear Astrophysics (JUNA) collaboration has reported a recent direct measurement of the cross-section of an essential stellar neutron source reaction, 13C(α, n)16O. The study research was published in Physical Review Letters on September 23.By reaching the most...

Rare, Green Comet Passes Earth For the First Time in 50,000 Years

Credit: Awareness Act.Last year, astronomers discovered Comet C/2022 E3 ZTF, which had not been visible until then due to its distance from Earth. However, it is now approaching Earth, and soon it will be making its closest approach in 50,000 years. Astronomers have stated that this will be the only chance to see it...

The Coming Solar Eclipse Will Be the Last Visible in United State Until 2045

Elipse solar. Credit: EUMETSAT."Throughout my life, I have constantly noticed articles and news about total solar eclipses, just to be let down by the fact that the eclipse was invisible in the United States. Fortunately, the following year, this will alter." said Harley Manson.On April 8th, 2024, a total solar eclipse from the United...

Ripples in Fabric of Universe May Reveal Start of Time

Numerical simulation of the neutron stars merging to form a black hole, with their accretion disks interacting to produce electromagnetic waves. Credit: L. Rezolla (AEI) & M. Koppitz (AEI & Zuse-Institut Berlin)Researchers have advanced in finding out how to utilize ripples in space-time considered as gravitational waves to peer back to the beginning of...

How Supermassive Fuel-Hungry Black Holes Feed off Intergalactic Gas

Two interacting galaxies viewed from the Hubble Space Telescope. Credit: NASA/ESA/Hubble Heritage TeamA research study led by the College of Southampton has shown how supermassive black holes (SMBHs) are feeding off gas clouds that reach them by traveling hundreds of thousands of light yrs from one galaxy to another.A worldwide team of scientists has...

Thirteen Recent Pulsars Discovered with MeerKAT

Intensity as a function of time and spin phase for the two detections of the new eclipsing redback pulsar 47 Tuc ad. Left panel: Parkes observation made on 2004/05/27. Right panel: MeerKAT discovery observation. Credit: Ridolfi et al., 2021.Utilizing the MeerKAT radio telescope, astronomers from the Max Planck Institution for Radio Astronomy (MPIfR) in...

Spectacular Sights of Earth, Moon Revealed by Danuri Lunar Orbiter

Earth as seen by the Danuri orbiter. Credit: KARI.South Korea's first-ever lunar orbiter Danuri has sent out black-and-white pictures of the Moon's surface and Earth, the national space center claimed Tuesday.Danuri-- a portmanteau of the Korean words for "Moon" and "enjoy"-- was released on a SpaceX rocket from the USA in August 2022 and went...

Old NASA Satellite Falls Harmlessly from Sky Off Alaska

In this photo made available by NASA, the space shuttle Challenger launches the Earth Radiation Budget Satellite in 1984. On Friday, Jan. 6, 2023, the U.S. space agency said the 38-year-old NASA satellite is about to fall from the sky, but the chance of wreckage falling on anybody is “very low.” It's expected to...