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.

 

New measurement of Hubble constant adds to cosmic mystery
New measurements of the rate of expansion of the universe add to a growing mystery: Estimates of a fundamental constant made with different methods keep giving different results.
Publ.Date : Wed, 23 Oct 2019 15:03:27 EDT

First identification of a heavy element born from neutron star collision
For the first time, a freshly made heavy element, strontium, has been detected in space, in the aftermath of a merger of two neutron stars. The detection confirms that the heavier elements in the Universe can form in neutron star mergers, providing a missing piece of the puzzle of chemical element formation.
Publ.Date : Wed, 23 Oct 2019 13:21:53 EDT

No defects found in reproductive ability of male mice returning from short stay in space
Male mice raised in space using specially developed cages were returned safely to Earth. The sperm production/fertilizing ability of the mice were normal and the reproduction ability of the offspring were not affected by their parents' stay in outer space. The findings on the effects of the environment in space on the male reproductive system will contribute to the accumulation of basic knowledge for humankind to expand the range of its activity to space.
Publ.Date : Wed, 23 Oct 2019 09:34:53 EDT

Monstrous galaxy from dawn of the universe accidentally discovered
The early universe is filled with monsters, a new study revealed. Researchers discovered a previously invisible galaxy, and perhaps a new galaxy population waiting to be discovered.
Publ.Date : Tue, 22 Oct 2019 14:22:02 EDT

Mix master: Modeling magnetic reconnection in partially ionized plasma
Many of the most dramatic events in the solar system -- the spectacle of the Northern Lights, the explosiveness of solar flares, and the destructive impact of geomagnetic storms that can disrupt communication and electrical grids on Earth -- are driven in part by a common phenomenon: fast magnetic reconnection. In this process the magnetic field lines in plasma -- the gas-like state of matter consisting of free electrons and atomic nuclei, or ions -- tear, come back together and release large amounts of energy.
Publ.Date : Tue, 22 Oct 2019 09:28:14 EDT

Biodiversity of insects modeled from space satellite data
With freely available radar data from satellites, biodiversity in forests can be analysed very well. Researchers now report that biodiversity even of tiny insects can be reliably modeled from space.
Publ.Date : Mon, 21 Oct 2019 10:39:02 EDT

Mars once had salt lakes similar to those on Earth
Mars once had salt lakes that are similar to those on Earth and has gone through wet and dry periods.
Publ.Date : Fri, 18 Oct 2019 18:10:51 EDT

Origin and chemical makeup of Saturn's Moon Titan's dunes
Astronomers exposed acetylene ice -- a chemical that is used on Earth in welding torches and exists at Titan's equatorial regions -- at low temperatures to proxies of high-energy galactic cosmic rays.
Publ.Date : Fri, 18 Oct 2019 10:05:06 EDT

Stranded whales detected from space
A new technique for analysing satellite images may help scientists detect and count stranded whales from space. Researchers tested a new detection method using Very High Resolution (VHR) satellite images of the biggest mass stranding of baleen whales yet recorded. It is hoped that in the future the technique will lead to real-time information as stranding events happen.
Publ.Date : Thu, 17 Oct 2019 14:11:14 EDT

Ancient stars shed light on Earth's similarities to other planets
Earth-like planets may be common in the universe, a new study implies. The team of astrophysicists and geochemists presents new evidence that the Earth is not unique.
Publ.Date : Thu, 17 Oct 2019 14:10:52 EDT

Hubble observes first confirmed interstellar comet
Hubble has given astronomers their best look yet at an interstellar visitor -- comet 2I/Borisov -- whose speed and trajectory indicate it has come from beyond our solar system. Comet 2I/Borisov is only the second such interstellar object known to have passed through the solar system.
Publ.Date : Wed, 16 Oct 2019 13:12:36 EDT

Heron survey fishes out detail in ghostly galaxy outskirts
Astronomers have completed the largest survey to date of the faint outskirts of nearby galaxies, successfully testing a low-cost system for exploring these local stellar systems. The team find that the diameters of the galactic outskirts -- the haloes -- appear to correlate with the brightness and type of galaxy.
Publ.Date : Tue, 15 Oct 2019 13:14:12 EDT

Soil on moon and Mars likely to support crops
Researchers have produced crops in Mars and moon soil simulant developed by NASA. The research supports the idea that it would not only be possible to grow food on Mars and the moon to feed future settlers, but also to obtain viable seed from crops grown there.
Publ.Date : Tue, 15 Oct 2019 11:53:59 EDT

Analysis of Galileo's Jupiter entry probe reveals gaps in heat shield modeling
The entry probe of the Galileo mission to Jupiter entered the planet's atmosphere in 1995 in fiery fashion, generating enough heat to cause plasma reactions on its surface. The data relayed about the burning of its heat shield differed from the effects predicted in fluid dynamics models, and new work examines what might have caused such a discrepancy. Researchers now report their findings from new fluid radiative dynamics models.
Publ.Date : Tue, 15 Oct 2019 11:06:59 EDT

Astronomers use giant galaxy cluster as X-ray magnifying lens
Astronomers have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, they spotted a tiny dwarf galaxy in its very first, high-energy stages of star formation.
Publ.Date : Mon, 14 Oct 2019 11:17:18 EDT

Black holes stunt growth of dwarf galaxies
Astronomers have discovered that powerful winds driven by supermassive black holes in the centers of dwarf galaxies have a significant impact on the evolution of these galaxies by suppressing star formation.
Publ.Date : Fri, 11 Oct 2019 16:53:22 EDT

Ice on lunar south pole may have more than one source
New research sheds light on the ages of ice deposits reported in the area of the Moon's south pole -- information that could help identify the sources of the deposits and help in planning future human exploration.
Publ.Date : Thu, 10 Oct 2019 13:57:01 EDT

Sharing data for improved forest protection and monitoring
Although the mapping of aboveground biomass is now possible with satellite remote sensing, these maps still have to be calibrated and validated using on-site data gathered by researchers across the world.
Publ.Date : Thu, 10 Oct 2019 12:56:19 EDT

Milky Way raids intergalactic 'bank accounts'
Gas blown out of the Milky Way disk from exploding stars falls back onto the galaxy to form new generations of stars. In an effort to account for this recycling process, astronomers were surprised to find a surplus of incoming gas.
Publ.Date : Thu, 10 Oct 2019 12:56:15 EDT

The Milky Way kidnapped several tiny galaxies from its neighbor
A team of astronomers has discovered that several of the small -- or 'dwarf' -- galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud, including several ultrafaint dwarfs, but also relatively bright and well-known satellite galaxies, such as Carina and Fornax.
Publ.Date : Thu, 10 Oct 2019 11:32:03 EDT