Astronomy News

Courtesy of Science Daily

Welcome to Sea and Sky's Astronomy News. Here you can find links to the latest space news headlines on the topic of astronomy. 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.

 

Astronomy News -- ScienceDaily
Updated : Sat, 24 Aug 2019 21:37:48 EDT

Mission to Jupiter's icy moon confirmed
An icy ocean world in our solar system that could tell us more about the potential for life on other worlds is coming into focus with confirmation of the Europa Clipper mission's next phase.
Publ.Date : Thu, 22 Aug 2019 14:32:18 EDT

Storms on Jupiter are disturbing the planet's colorful belts
Coordinated observations of Jupiter in early 2017 by six ground-based telescopes and Hubble allowed astronomers to study the evolution of bright plumes and connect them with cloud movements deep in the planet. They show that these plumes originate 80 kilometers below the surface cloud deck and rise up quickly into the stratosphere, where supercooled ammonia freezes to form ammonia ice clouds. The plumes create disturbances in the belts and even change their color.
Publ.Date : Thu, 22 Aug 2019 13:04:38 EDT

Maximum mass of lightest neutrino revealed using astronomical big data
The mass of the lightest neutrino, an abundant 'ghost' particle found throughout the universe, has been calculated to be at least 6 million times lighter than the mass of an electron.
Publ.Date : Thu, 22 Aug 2019 11:34:07 EDT

Temperatures of 800 billion degrees in the cosmic kitchen
It is among the most spectacular events in the universe: a merger of neutron stars. Astronomers have completed the first laboratory measurements of thermal electromagnetic radiation arising in such collisions. The resulting data enabled them to calculate the prevailing temperature when such stars merge.
Publ.Date : Thu, 22 Aug 2019 10:14:19 EDT

Spaceflight consistently affects the gut
A new study discovered that spaceflight -- both aboard a space shuttle or the International Space Station (ISS) -- has a consistent effect on the gut microbiome.
Publ.Date : Wed, 21 Aug 2019 12:05:51 EDT

Enabling longer space missions
The Hall thruster is a propulsion system that is often used by spacecraft engaged in longer missions. A recent study has shown how the operating lives of these systems can be further extended.
Publ.Date : Tue, 20 Aug 2019 13:09:36 EDT

Stardust in the Antarctic snow
The rare isotope iron-60 is created in massive stellar explosions. Only a very small amount of this isotope reaches the earth from distant stars. Now, a research team has discovered iron-60 in Antarctic snow for the first time. The scientists suggest that the iron isotope comes from the interstellar neighborhood.
Publ.Date : Tue, 20 Aug 2019 10:16:23 EDT

Black hole holograms
Researchers show how a holographic tabletop experiment can be used to simulate the physics of a black hole. This work may lead the way to a more complete theory of quantum gravity that harmonizes quantum mechanics and relativity.
Publ.Date : Tue, 20 Aug 2019 10:16:06 EDT

A second planet in the Beta Pictoris system
A team of astronomers has discovered a second giant planet in orbit around alpha Pictoris, a star that is relatively young (23 million years old) and close (63.4 light years), and surrounded by a disk of dust. The alpha Pictoris system has fascinated astronomers for the last 30 years since it enables them to observe a planetary system in the process of forming around its star.
Publ.Date : Mon, 19 Aug 2019 11:27:35 EDT

Best of both worlds: Asteroids and massive mergers
Researchers are using the Catalina Sky Survey's near-Earth object telescopes to locate the optical counterparts to gravitational waves triggered by massive mergers.
Publ.Date : Fri, 16 Aug 2019 09:24:27 EDT

Moon glows brighter than sun in images from NASA's Fermi
If our eyes could see gamma rays, the Moon would appear brighter than the Sun! That's how NASA's Fermi Gamma-ray Space Telescope has seen our neighbor in space for the past decade.
Publ.Date : Thu, 15 Aug 2019 12:06:56 EDT

Young Jupiter was smacked head-on by massive newborn planet
A colossal, head-on collision between Jupiter and a still-forming planet in the early solar system, about 4.5 billion years ago, could explain surprising readings from NASA's Juno spacecraft, according to a new study.
Publ.Date : Thu, 15 Aug 2019 11:37:35 EDT

How many Earth-like planets are around sun-like stars?
A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our Sun.
Publ.Date : Wed, 14 Aug 2019 11:19:03 EDT

James Webb Space Telescope could begin learning about TRAPPIST-1 atmospheres in a year
Astronomers are using the intriguing TRAPPIST-1 planetary system as a kind of laboratory to model not the planets themselves, but how the coming James Webb Space Telescope might detect and study their atmospheres, on the path toward looking for life beyond Earth.
Publ.Date : Tue, 13 Aug 2019 17:07:27 EDT

Fluorescent glow may reveal hidden life in the cosmos
Astronomers have uncovered a new way of searching for life in the cosmos. Harsh ultraviolet radiation flares from red suns, once thought to destroy surface life on planets, might help uncover hidden biospheres. Their radiation could trigger a protective glow from life on exoplanets called biofluorescence, according to new research.
Publ.Date : Tue, 13 Aug 2019 14:45:10 EDT

Finding a cosmic fog within shattered intergalactic pancakes
In a new study, researchers report on the most detailed simulation ever of a large patch of the intergalactic medium (IGM). For the first time, they were able to see how cold, dense gas clouds in the IGM organize themselves and react within much larger 'sheets' or 'pancakes' of matter in the vastness of space.
Publ.Date : Tue, 13 Aug 2019 11:34:52 EDT

A new timeline of Earth's cataclysmic past
Recent research shows that our planet may have been pummeled with asteroids long before some scientists had previously thought.
Publ.Date : Mon, 12 Aug 2019 13:08:21 EDT

Virtual 'universe machine' sheds light on galaxy evolution
By creating millions of virtual universes and comparing them to observations of actual galaxies, researchers have made discoveries that present a powerful new approach for studying galaxy formation.
Publ.Date : Fri, 09 Aug 2019 17:08:18 EDT

NASA's MMS finds first interplanetary shock
NASA's MMS mission just made the first high-resolution measurements of an interplanetary shockwave launched from the Sun.
Publ.Date : Thu, 08 Aug 2019 12:38:55 EDT

Hubble's new portrait of Jupiter
A new Hubble Space Telescope view of Jupiter reveals the giant planet's trademark Great Red Spot, and a more intense color palette in the clouds swirling in Jupiter's turbulent atmosphere than seen in previous years.
Publ.Date : Thu, 08 Aug 2019 11:51:00 EDT