Space Exploration News

Courtesy of Science Daily

Welcome to Sea and Sky's Space Exploration News. Here you can find links to the latest space news headlines about space exploration and space travel. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Extreme Jupiter weather and magnetic fields
New observations about the extreme conditions of Jupiter's weather and magnetic fields by astronomers have contributed to the revelations and insights coming from the first close passes of Jupiter by NASA's Juno mission.
Publ.Date : Thu, 25 May 2017 14:58:44 EDT

Juno mission to Jupiter delivers first science results
NASA's Juno mission is rewriting what scientists thought they knew about Jupiter specifically, and gas giants in general, according to a pair of Science papers released today. The Juno spacecraft has been in orbit around Jupiter since July 2016, passing within 3,000 miles of the equatorial cloudtops.
Publ.Date : Thu, 25 May 2017 14:15:38 EDT

The big star that couldn't become a supernova
For the first time in history, astronomers have been able to watch as a dying star was reborn as a black hole. It went out with a whimper instead of a bang.
Publ.Date : Thu, 25 May 2017 14:15:32 EDT

Volunteers help find star that exploded 970 million years ago, predating the dinosaurs
Online volunteers have helped astronomers find a star that exploded 970 million years ago, predating the dinosaurs' time on Earth.
Publ.Date : Wed, 24 May 2017 10:15:22 EDT

New object near supermassive black hole in famous galaxy
When astronomers took a new look at a famous galaxy with the upgraded Very Large Array, they were surprised by the appearance of a new, bright object that had not appeared in previous images.
Publ.Date : Tue, 23 May 2017 14:41:04 EDT

Neptune: Neutralizer-free plasma propulsion
Plasma propulsion concepts are gridded-ion thrusters that accelerate and emit more positively charged particles than negatively charged ones. To enable the spacecraft to remain charge-neutral, a 'neutralizer' injects electrons to exactly balance the positive ion charge in the exhaust beam, but this neutralizer requires additional power from the spacecraft. Researchers are investigating how the radio-frequency self-bias effect can be used to remove the neutralizer altogether.
Publ.Date : Tue, 23 May 2017 12:42:03 EDT

CAST project places new limitations on dark matter
CERN research results deliver no evidence for the existence of solar axions.
Publ.Date : Tue, 23 May 2017 10:43:35 EDT

ASKAP telescope to rule radio-burst hunt
A CSIRO telescope in Western Australia has found its first 'fast radio burst' from space after less than four days of searching.
Publ.Date : Tue, 23 May 2017 08:33:08 EDT

How radioactive decay could support extraterrestrial life
In the icy bodies around our solar system, radiation emitted from rocky cores could break up water molecules and support hydrogen-eating microbes. To address this cosmic possibility, a team modeled a natural water-cracking process called radiolysis. They then applied the model to several worlds with known or suspected interior oceans, including Saturn's moon Enceladus, Jupiter's moon Europa, Pluto and its moon Charon, as well as the dwarf planet Ceres.
Publ.Date : Tue, 23 May 2017 08:19:57 EDT

Kepler telescope spies details of TRAPPIST-1 system's outermost planet
A team of astronomers has used data gathered by the Kepler Space Telescope to observe and confirm details of the outermost of seven exoplanets or-biting the star TRAPPIST-1.
Publ.Date : Tue, 23 May 2017 08:18:58 EDT

New type of planetary object proposed: Synestia
There's something new to look for in the heavens, and it's called a 'synestia,' according to planetary scientists. A synestia, they propose, would be a huge, spinning, donut-shaped mass of hot, vaporized rock, formed as planet-sized objects smash into each other.
Publ.Date : Tue, 23 May 2017 08:18:52 EDT

A new approach to forecasting solar flares?
The emerging discipline of space meteorology aims to reliably predict solar flares so that we may better guard against their effects. Using 3D numerical models, an international team has discovered a proxy that could be used to forecast an eruptive event. The proxy is associated with magnetic helicity, which reflects the extent of twist and entanglement of the magnetic field.
Publ.Date : Mon, 22 May 2017 08:10:42 EDT

Secondary Mirror of ELT Successfully Cast: Largest convex mirror blank ever created
The casting of the secondary mirror blank for ESO’s Extremely Large Telescope (ELT) has been completed by SCHOTT at Mainz, Germany. The completed mirror will be 4.2 metres in diameter and weigh 3.5 tonnes. It will be the largest secondary mirror ever employed on a telescope and also the largest convex mirror ever produced.
Publ.Date : Mon, 22 May 2017 08:09:34 EDT

Mapping super massive black holes in the distant universe
Astronomers have constructed the first map of the Universe based on the positions of supermassive black holes, which reveals the large-scale structure of the Universe.
Publ.Date : Fri, 19 May 2017 13:18:11 EDT

History of Titan's landscape resembles that of Mars, not Earth
In a paper published in Science, researchers report that Titan, like Mars but unlike Earth, has not undergone any active plate tectonics in its recent past. The upheaval of mountains by plate tectonics deflects the paths that rivers take. The team found that this telltale signature was missing from river networks on Mars and Titan.
Publ.Date : Thu, 18 May 2017 14:38:17 EDT

NASA mission uncovers a dance of electrons in space
NASA's MMS mission studies how electrons spiral and dive around the planet in a complex dance dictated by the magnetic and electric fields, and a new study revealed a bizarre new type of motion exhibited by these electrons.
Publ.Date : Thu, 18 May 2017 14:02:51 EDT

Moon orbits third largest dwarf planet in our solar system
Astronomers have uncovered a moon orbiting the third largest dwarf planet, 2007 OR10, in the frigid outskirts of our solar system called the Kuiper Belt.
Publ.Date : Thu, 18 May 2017 14:02:49 EDT

Icy ring surrounds young planetary system
ALMA has made the first complete millimeter-wavelength image of the ring of dusty debris surrounding the young star Fomalhaut. This remarkably well-defined band of rubble and gas is likely the result of exocomets smashing together near the outer edges of a planetary system 25 light-years from Earth.
Publ.Date : Thu, 18 May 2017 14:02:29 EDT

First direct exploration of magnetic fields in the upper solar atmosphere
Scientists have explored the magnetic field in upper solar atmosphere by observing the polarization of ultraviolet light with the CLASP sounding rocket experiment during its 5-minute flight in space on Sept. 3, 2015. The data show that the structures of the solar chromosphere and transition region are more complicated than expected. It is proven that ultraviolet spectropolarimetry can be used in future investigations of the magnetic fields in upper solar chromosphere and transition region.
Publ.Date : Thu, 18 May 2017 10:41:29 EDT

Space weather events linked to human activity
Human activities, like nuclear tests and radio transmissions, have been changing near-Earth space and weather, and have created artificial radiation belts, damaged satellites and induced auroras.
Publ.Date : Wed, 17 May 2017 11:16:18 EDT