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 : Sun, 19 Jan 2020 00:37:50 EST

Scientists measure the evolving energy of a solar flare's explosive first minutes
In 2017, a massive new region of magnetic field erupted on the sun's surface next to an existing sunspot. The powerful collision of magnetic energy produced a series of solar flares, causing turbulent space weather conditions at Earth. Scientists have now pinpointed for the first time exactly when and where the explosion released the energy that heated spewing plasma to energies equivalent to 1 billion degrees in temperature.
Publ.Date : Fri, 17 Jan 2020 12:21:05 EST

The core of massive dying galaxies already formed 1.5 billion years after the Big Bang
The most distant dying galaxy discovered so far, more massive than our Milky Way -- with more than a trillion stars -- has revealed that the 'cores' of these systems had formed already 1.5 billion years after the Big Bang, about 1 billion years earlier than previous measurements revealed. The discovery will add to our knowledge on the formation of the Universe more generally, and may cause the computer models astronomers use, one of the most fundamental tools, to be revised.
Publ.Date : Fri, 17 Jan 2020 10:47:50 EST

Here and gone: Outbound comets are likely of alien origin
Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two objects heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond.
Publ.Date : Fri, 17 Jan 2020 09:43:29 EST

Taking the temperature of dark matter
Warm, cold, just right? Physicists are using gravitational lensing to take the temperature of dark matter, the mysterious substance that makes up about a quarter of our universe.
Publ.Date : Wed, 15 Jan 2020 14:05:12 EST

Astronomers discover class of strange objects near our galaxy's enormous black hole
Astronomers have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius A*.
Publ.Date : Wed, 15 Jan 2020 13:23:16 EST

When the Milky Way collided with dwarf galaxy Gaia-Enceladus
A single star has provided information about the collision of the Milky Way with the dwarf galaxy Gaia-Enceladus. The event likely took place approximately 11.5 billion years ago.
Publ.Date : Wed, 15 Jan 2020 13:23:13 EST

Astronomers reveal interstellar thread of one of life's building blocks
Phosphorus is an essential element for life as we know it. But how it arrived on the early Earth is something of a mystery. Astronomers have now traced the journey of phosphorus from star-forming regions to comets using the combined powers of ALMA and the European Space Agency's probe Rosetta. Their research shows where molecules containing phosphorus form, how this element is carried in comets, and how a particular molecule may have played a crucial role in starting life on Earth.
Publ.Date : Wed, 15 Jan 2020 07:56:11 EST

X-rays and gravitational waves will combine to illuminate massive black hole collisions
A new study has found that collisions of supermassive black holes may be simultaneously observable in both gravitational waves and X-rays at the beginning of the next decade.
Publ.Date : Tue, 14 Jan 2020 10:17:17 EST

'Cold Neptune' and two temperate super-Earths found orbiting nearby stars
A 'cold Neptune' and two potentially habitable worlds are part of a cache of five newly discovered exoplanets and eight exoplanet candidates found orbiting nearby red dwarf stars. The two potentially habitable planets are among the nearest stars to our own Sun, making them prime targets for observations by next-generation space- and land-based telescopes.
Publ.Date : Tue, 14 Jan 2020 09:09:50 EST

Connecting the dots in the sky could shed new light on dark matter
Astrophysicists have come a step closer to understanding the origin of a faint glow of gamma rays covering the night sky. They found that this light is brighter in regions that contain a lot of matter and dimmer where matter is sparser -- a correlation that could help them narrow down the properties of exotic astrophysical objects and invisible dark matter.
Publ.Date : Mon, 13 Jan 2020 17:56:46 EST

Meteorite contains the oldest material on Earth: 7-billion-year-old stardust
Scientists have discovered the oldest solid material on Earth: 7-billion-year-old stardust trapped inside a meteorite. This stardust provides evidence for a 'baby boom' of new stars that formed 7 billion years ago, contrary to thinking that star formation happens at a steady, constant rate.
Publ.Date : Mon, 13 Jan 2020 15:33:06 EST

How the solar system got its 'Great Divide,' and why it matters for life on Earth
Scientists have finally scaled the solar system's equivalent of the Rocky Mountain range.
Publ.Date : Mon, 13 Jan 2020 11:10:48 EST

TESS dates an ancient collision with our galaxy
A single bright star in the constellation of Indus, visible from the southern hemisphere, has revealed new insights on an ancient collision that our galaxy the Milky Way underwent with another smaller galaxy called Gaia-Enceladus early in its history.
Publ.Date : Mon, 13 Jan 2020 11:10:46 EST

Stars need a partner to spin universe's brightest explosions
When it comes to the biggest and brightest explosions seen in the universe, astronomers have found that it takes two stars to make a gamma-ray burst.
Publ.Date : Mon, 13 Jan 2020 10:42:01 EST

A stripped helium star solves the massive black hole mystery
Recently, a Chinese team of astronomers claimed to have discovered a black hole as massive as 70 solar masses, which, if confirmed, would severely challenge the current view of stellar evolution. Among those to take a closer look at the object were astronomers from the Universities of Erlangen-N├╝rnberg and Potsdam. They discovered that it may not necessarily be a black hole at all, but possibly a massive neutron star or even an 'ordinary' star.
Publ.Date : Fri, 10 Jan 2020 10:10:27 EST

Experiment on beta-decay sheds light on fate of intermediate-mass stars
A group of scientists succeeded to experimentally determine characteristics of nuclear processes in matter ten million times denser and 25 times hotter than the center of our sun. A result of the measurement is that intermediate-mass stars are very likely to explode, and not, as assumed until now, collapse.
Publ.Date : Fri, 10 Jan 2020 10:10:20 EST

Mars: Water could disappear faster than expected
The small red planet is losing water more quickly than what theory as well as past observations would suggest. An international research team has just revealed that water vapor is accumulating in large quantities and unexpected proportions at an altitude of over 80 km in the Martian atmosphere. The capacity of water to escape would greatly increase during certain seasons.
Publ.Date : Thu, 09 Jan 2020 14:10:07 EST

Planet WASP-12b is on a death spiral, say scientists
Astrophysicists have shown that exoplanet WASP-12b, located 600 light-years away, is spiraling in toward certain destruction in about 3 million years.
Publ.Date : Wed, 08 Jan 2020 13:17:23 EST

Cosmic bubbles reveal the first stars
Astronomers have identified several overlapping bubbles of hydrogen gas ionized by the stars in early galaxies, a mere 680 million years after the Big Bang. This is the earliest direct evidence from the period when the first generation of stars formed and began reionizing the hydrogen gas that permeated the Universe.
Publ.Date : Wed, 08 Jan 2020 07:48:05 EST

Surprise! TESS shows ancient north star undergoes eclipses
NASA's TESS satellite has shown that the bright star Alpha Draconis and its fainter, previously known companion actually undergo mutual eclipses: a complete surprise.
Publ.Date : Tue, 07 Jan 2020 10:49:38 EST