List of All Articles with Tag 'a'

DALLAS--(BUSINESS WIRE)--Nov 30, 2023--

FREMONT, Calif.--(BUSINESS WIRE)--Nov 30, 2023--

The best gifts for commuters make your loved one’s journey to work something they’ll look forward to.

European Central Bank officials keep insisting that interest rates need to stay high, but another stark slowdown in

A meteorite which smashed into earth 29m years ago may be behind a strange yellow glass found in a certain part of the desert in southeast Libya and southwestern Egypt, according to researchers. The Great Sand Sea Desert stretches over about 72,000 square kilometres across the two countries, and is the only place where the mysterious yellow material is found on Earth. Researchers first described it in a 1933 scientific paper, calling it Libyan desert glass. Mineral collectors have long valued it for its beauty and mysterious qualities – and it was even found in a pendant in Egyptian pharaoh Tutankhamun’s tomb. The origin of the glass has been a mystery for centuries, but researchers writing in the journal De Gruyter used new advanced microscopy technology to get answers. Elizaveta Kovaleva, a lecturer at the University of the Western Cape, wrote that the glass was caused by “the impact of a meteorite on the Earth's surface”. Writing in The Conversation, she said: “Space collisions are a primary process in the solar system, as planets and their natural satellites accreted via the asteroids and planet embryos (also called planetesimals) colliding with each other. These impacts helped our planet to assemble, too.” She said: “We studied the samples with a state-of-the-art transmission electron microscopy technique, which allows us to see tiny particles of material – 20,000 times smaller than the thickness of a paper sheet. “Using this super-high magnification technique, we found small minerals in this glass: different types of zirconium oxide (ZrO₂).” One of the types of this mineral found in the glass can only form at temperatures between 2,250 celsius and 2,700 celsius. Toasty. Kovaleva said: “Such conditions can only be obtained in the Earth's crust by a meteorite impact or the explosion of an atomic bomb.” However, she wrote, there are just as many questions as there are answers. The nearest known meteorite craters are too far away and too small to be the cause of that much glass all concentrated in one part of the world. “So, while we've solved part of the mystery, more questions remain. Where is the parental crater? How big is it – and where is it? Could it have been eroded, deformed or covered by sand?” Safe to say, the scientists will keep on looking until they have the answers. How to join the indy100's free WhatsApp channel Sign up to our free indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

WASHINGTON A classified briefing for all U.S. senators on Ukraine, Israel and elements of the national security supplemental

By David Shepardson WASHINGTON General Motors said on Thursday it expects significant reductions in electric vehicle production costs

By Suzanne McGee GraniteShares plans to increase the amount of leverage on most of its single-stock exchange-traded funds

By Laura Sanicola (Reuters) -Oil prices fell on Thursday after rising by more than 1% earlier in the session after

A revised look at the 2023 NFL Draft's top 10 picks — how rookie performances are reshaping initial impressions and draft choices.

Agents hustling to strike deals for homes in a tough Manhattan market are confronting another major hurdle as

With the Chicago Bulls seemingly preparing for a fire sale, Zach LaVine is set up as the first trade domino to fall.