‘Egg carton’ quantum dot array could lead to ultralow power devices

A new path toward sending and receiving information with single photons of light has been discovered by an international team of researchers led by the University of Michigan. …

Google Finance Adds Crypto Data Tab For Bitcoin, Ether, Litecoin and Bitcoin Cash

Google Finance now has a dedicated “crypto” field for bitcoin, ether, litecoin and bitcoin cash. CoinDesk reports: Right at the top of the page, where users can “compare markets,” crypto is listed among the five default markets, which also includes U.S., Europe, Asia and “Currencies.” At the moment, it appears Google Finance only tracks a limited number of cryptocurrencies. Bitcoin, ethereum,…

What’s the coldest Earth has ever been?

Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…

See Sirius, the brightest star in the night sky

Find out how to spot Sirius, the brightest star as seen from Earth. Learn the mythology behind this dazzling light and how it earned the nickname of the Dog Star. Source: https://earthsky.org/brightest-stars/sirius-the-brightest-star…

They Stormed the Capitol. Their Apps Tracked Them

In 2019 two New York Times opinion writers obtained cellphone app data “containing the precise locations of more than 12 million individual smartphones for several months in 2016 and 2017.” (It’s data that they say is “supposed to be anonymous, but it isn’t. We found celebrities, Pentagon officials and average Americans.”) Now they’ve obtained a remarkable new trove of data, “this…

The moon rock in Washington National Cathedral

A moon rock collected by Apollo astronauts during the first moon landing is enshrined in a stained-glass window – known as the Space Window – in the Washington National Cathedral. Source: https://earthsky.org/human-world/moon-rock-washington-national-cathedral-stained-glass-window…

Maarten Schmidt solves the puzzle of quasars

On February 5, 1963, Maarten Schmidt unraveled the mystery of quasars and pushed back the edges of the known cosmos. His insight into quasars – the most distant and luminous objects known – has changed the way scientists view the universe. Source: https://earthsky.org/space/this-date-in-science-maartin-schmidt-discovers-first-known-quasar…

How to see Sirius B

Sirius is a binary star, with a small white dwarf called the Pup orbiting the large primary star. It’s not easy to observe, but it is possible. Here’s how. Source: https://earthsky.org/brightest-stars/how-to-observe-sirius-b…

How Reddit’s Co-Founder, Jim Cramer, and Wall Street Reacted to GameStop’s Surge

Friday afternoon CNBC reported that “heightened speculative trading by retail investors” (later referred to as “GameStop mania”) had “continued to unnerve the market.”
The Dow Jones Industrial average lost 620.74 points, or 2%, to 29,982.62, the first time the 30-stock gauge has closed below the 30,000 mark since Dec. 14…. The market also experienced the highest trading volume in years as the…

Top 12 brightest objects in the solar system

Can you name the top 12 brightest objects in the solar system? How many have you seen without the aid of binoculars or a telescope? Source: https://earthsky.org/space/what-are-the-brightest-objects-in-our-solar-system…