Astronomers from the California Institute of Technology and elsewhere report the detection of a new eclipsing detached double white dwarf binary. The system, designated ZTF J2243+5242 has an orbital period of below 10 minutes, which makes it one of the shortest-period eclipsing binaries known to date. The finding is detailed in a paper published October 7 on arXiv.org.
Astronomers are interested in finding and studying double white dwarfs (DWDs), as their mergers are believed to produce new white dwarfs with higher masses. It is assumed that some high-mass white dwarfs in the solar neighborhood could be DWD merger products.
The Zwicky Transient Facility (ZTF), using the Palomar Observatory in California, is one of the most important astronomical surveys to search for double white dwarf binary systems. So
Common assumptions notwithstanding, rare species can play unique and essential ecological roles. After studying two databases that together cover all known terrestrial mammals and birds worldwide, scientists from the CNRS, the Foundation for Biodiversity Research (FRB), Université Grenoble Alpes, and the University of Montpellier have demonstrated that, though these species are found on all continents, they are more threatened by human pressures than ecologically common species and will also be more impacted by future climate change. Thus, they are in double jeopardy. The researchers’ findings, published in Nature Communications (October 8, 2020), show that conservation programs must account for the ecological rarity of species.
It has long been thought that rare species contribute little to the functioning of ecosystems. Yet recent studies have discredited that idea: Rarity is a matter not only of the abundance or geographical range of a species, but also of the distinctiveness
Common assumptions notwithstanding, rare species can play unique and essential ecological roles. After studying two databases that together cover all known terrestrial mammals and birds worldwide, scientists from the CNRS, the Foundation for Biodiversity Research (FRB), Université Grenoble Alpes, and the University of Montpellier have demonstrated that, though these species are found on all continents, they are more threatened by human pressures than ecologically common species and will also be more impacted by future climate change. Thus they are in double jeopardy. The researchers’ findings, published in Nature Communications (October 8, 2020), show that conservation programmes must account for the ecological rarity of species.
It has long been thought that rare species contribute little to the functioning of ecosystems. Yet recent studies have discredited that idea: rarity is a matter not only of the abundance or geographical range of a species, but also of the distinctiveness of its ecological functions.
Popularity isn’t necessarily a good thing. There have been plenty of popular stocks in the past that eventually flamed out.
But popularity isn’t necessarily a bad thing, either. For example, quite a few of the 100 most popular stocks on the Robinhood trading platform appear to have very good growth prospects. Here are three on the list that could even realistically double within one year.
Image source: Getty Images.
Novavax(NASDAQ:NVAX) has gone way beyond doubling over the last 12 months. The biotech stock is up more than 2,000% thanks to good news for its influenza and coronavirus vaccine programs. It could very well deliver another 100% or greater return over the next year.
What would it take? For one thing, Novavax needs its COVID-19 vaccine candidate NVX-CoV2373 to succeed in late-stage clinical studies. The company has already kicked off a late-stage study of the vaccine in the
Anyone wondering how to speed up your home internet without dropping a ton of cash on an overpriced mesh Wi-Fi system will be happy to hear that it’s much easier and less expensive than you think.
If you’re sick of slow internet speeds and “buffering” on your computer, TV, or video game console, there’s a simple device that will be a game-changer for you.
Before you do something drastic like buying a new router or a pricey mesh Wi-Fi system, check out the TP-Link AV1000 Gigabit Powerline Internet Kit, which is just $49.99 on Amazon.
When you’re trying to watch a video or stream a game, slow internet speeds and buffering can be your worst nightmare. It’s so aggravating, but it happens all the time. What you might not realize though, is that there’s a wonderfully easy way for
A new software update on the MQ-9 Reaper allows the hunter-killer drone to carry eight AGM-114 Hellfire missiles — double its usual capacity, according to a service release.
As part of “Operational Flight Program 2409,” members of the 556th Test and Evaluation month with the increased payload. The MQ-9 typically carries four Hellfires total under its wings. Squadron, Creech Air Force Base, Nevada, flew the unmanned autonomous vehicle earlier this
Read Next: This Navy Destroyer Just Broke the All-Time Record for Consecutive Days at Sea
With the upgrade, Hellfires pylons that previously were reserved for 500-lb. bombs, such as the GBU-38 Joint Direct Attack Munition, or for fuel tanks, can now carry the additional missiles, the release said.
“History has proven the MQ-9’s ability to provide aerial continuity and attack support for air and ground forces during counter-insurgency and Close Air Support,” Lt. Col. Michael Chmielewski, commander of the 556th
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Sep 29, 2020 (Market Insight Reports) —
AMA Research added a comprehensive research document of 200+ pages on ‘Smart Inhaler Technology’ Market with detailed insights on growth factors and strategies. The study segments key regions that includes North America, Europe, Asia-Pacific with country level break-up and provide volume* and value related cross segmented information by each country. Some of the important players from a wide list of coverage used under bottom-up approach are Adherium Limited (New Zealand),AstraZeneca (England),Cohero Health (United States),GlaxoSmithKline (United Kingdom),Gecko Health Innovations Inc (United States),Inspiro Medical Ltd. (Israel),Propeller Health (United States),Boehringer Ingelheim GmbH (Germany),3M (United States),Merck & Co., Inc. (United States)
Sample Report + All Related Graphs & Charts @: https://www.advancemarketanalytics.com/sample-report/23731-global-smart-inhaler-technology-market
Inhaler is the medical device that is used to cure respiratory diseases. Smart inhalers have inbuilt digital sensors that helps in recording the
Joint report reveals just eight percent of women of color say it’s easy to thrive in technology
An inclusive culture is key to unlocking opportunities for women who are studying and working in technology, and holds the potential to double their number over the next 10 years, according to a joint research report by Accenture (NYSE: ACN) and Girls Who Code, an international nonprofit working to close the gender gap in technology.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20200929005390/en/
Accenture and Girls Who Code outline how much cultural practices can boost women in technology (Photo: Business Wire)
The report, “Resetting Tech Culture,” analyzed the journey for women in technology from college to mid-career. While there are many reasons women abandon a career in technology, the highest percentage of respondents — 37% — cite company culture as the leading cause.
Sept. 25 (UPI) — Radiation levels on the surface of the moon are 2.6 times greater than those measured on the International Space Station, according to a new study.
NASA intends to put the first woman on the moon by 2024 — and the first man since 1972. Earlier this week, the space agency released new details about its Artemis program, including its decision to target a landing spot on the lunar South Pole near Shackleton Crater.
Regardless of where NASA’s lunar landers touch down, Artemis astronauts will need to protect themselves from increased radiation levels.
Using the Lunar Lander Neutron and Dosimetry, or LND, scientists were able to, for the first time, measure radiation levels on the lunar surface.
Scientists shared the first-of-their-kind measurements in a new paper, published Friday in the journal Science Advances.
“The radiation exposure we have measured is a good benchmark for the radiation within