During the past 25 years astronomers have discovered a wide variety of exoplanets, made of rock, ice and gas, thanks to the construction of astronomical instruments designed specifically for planet searches. Also, using a combination of different observing techniques they have been able to determine a large number of masses, sizes, and hence densities of the planets, which helps them to…
Tag: system
New ‘eyewear’ to deepen the view of NASA’s Roman Space Telescope
NASA’s Nancy Grace Roman Space Telescope will be able to explore even more cosmic questions, thanks to a new near-infrared filter. The upgrade will allow the observatory to see longer wavelengths of light, opening up exciting new opportunities for discoveries from the edge of our solar system to the farthest reaches of space. Source: https://phys.org/news/2021-03-eyewear-deepen-view-nasa-roman.html…
SpaceX Launches 60 New Starlink Satellites
SpaceX has launched another batch of its Starlink satellites — the usual complement of 60 of the low Earth orbit spacecraft, which will join the more than 1,000 already making up the existing constellation. This is the fifth launch of Starlink satellites for SpaceX this year, and the 20th overall. From a report: Earlier this year, SpaceX opened up Starlink access…
Space Hurricane Seen Above Magnetic North Pole Was Raining Electrons
The first space hurricane ever was spotted in August 2014, consisting of “an eddy of plasma, a type of superhot, charged gas found throughout the solar system,” reports Business Insider. “And instead of rain, this storm brought showers of electrons.” From the report: In August 2014, satellites observed a swirling mass with a quiet center more than 125 miles above the…
US Issues Warning After Microsoft Says China Hacked Its Mail Server Program
An anonymous reader quotes a report from NBC News: The U.S. has issued an emergency warning after Microsoft said it caught China hacking into its mail and calendar server program, called Exchange. The perpetrator, Microsoft said in a blog post, is a hacker group that the company has “high confidence” is working for the Chinese government and primarily spies on American…
AMD Unveils New Radeon RX 6700 XT Midrange GPU To Take On GeForce RTX 3060 Ti
MojoKid writes: AMD announced a new member of its Radeon RX 6000 series graphics card line-up today, dubbed Radeon RX 6700 XT. Based on AMD’s RDNA 2 GPU architecture, the Radeon RX 6700 XT targets high frame rate 1440p gaming at max image quality with an MSRP of $479. The new GPU has 40 Compute Units (CUs) with 40 Ray Tracing…
Arizona Advances Bill Forcing Apple and Google To Allow Fortnite-style Alternative Payment Options
The Arizona House of Representatives just passed landmark app store legislation in a 31-29 vote on Wednesday that could have far-reaching consequences for Apple and Google and their respective mobile operating systems. From a report: The legislation, a sweeping amendment to Arizona’s existing HB2005 [PDF], prevents app store operators from forcing a developer based in the state to use a preferred…
Closest Mars-Pleiades conjunction until 2038
This year – on March 3, 2021 – the red planet Mars and the Pleiades star cluster – also known as the Seven Sisters – stage their closest conjunction on the sky’s dome until February 4, 2038. Source: https://earthsky.org/tonight/closest-mars-pleiades-conjunction-until-2038…
Gulf Stream at its weakest in over 1,000 years
A new study suggests that the Gulf Stream – an Atlantic Ocean current that plays a large role in shaping Earth’s weather patterns – is weaker now than at any point in the last 1,000 years. Source: https://earthsky.org/earth/gulf-stream-atlantic-weakest-in-over-1000-years…
Hackers Release a New Jailbreak Tool For Almost Every iPhone
An iPhone hacking team has released a new jailbreak tool for almost every iPhone, including the most recent models, by using the same vulnerability that Apple last month said was under active attack by hackers. TechCrunch reports: The Unc0ver team released its latest jailbreak this weekend, and says it works on iOS 11 (iPhone 5s and later) to iOS 14.3, which…