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Our solar system is home to millions of renegade space rocks, and this week three particularly large ones will blaze past Earth. But don’t worry – the closest one will still miss our planet by a comfy 2.2 million miles (3.5 million kilometers), or about 10 times the average distance between Earth and the moon, according to NASA.

On Monday (Feb. 27), an asteroid named 2012 DK31 will sail past our planet at a distance of about 3 million miles (4.8 million km). The asteroid measures an estimated 450 feet (137 meters) across, or about as wide as a 40-story skyscraper is tall, and its orbit around the sun crosses Earth’s orbit every few years.

Although the space rock poses no imminent threat to Earth, NASA classifies it as a potentially hazardous asteroid (PHA) – meaning the rock is large enough and orbits close enough to Earth that it could cause serious damage if its trajectory changed and a collision occurred. Generally, any asteroid measuring greater than 450 feet wide and orbiting within 4.6 million miles (7.5 million km) of Earth is considered a PHA. (NASA has mapped this asteroid’s trajectory for the next 200 years, and no collisions are predicted to occur).

Related: Could an asteroid destroy Earth?

On Tuesday (Feb. 28) a second skyscraper-sized PHA, also measuring roughly 450 feet across, will cross our planet’s orbit at a distance of about 2.2 million miles (3.5 million km). Known as  2006 BE55, this chunky space rock’s orbit crosses Earth’s orbit every four or five years.

Finally, on Friday (March 3), an asteroid measuring roughly 250 feet (76 m) across will fly by at a distance of 3.3 million miles (5.3 million km). The rock, named 2021 QW, isn’t quite wide enough to qualify as a PHA, but still makes a relatively close approach to Earth every few years.Related stories—How many satellites orbit Earth?

—What happened when the dinosaur-killing asteroid slammed into Earth?

—What are the largest impact craters on Earth?

Why do scientists pay such close attention to space rocks that will miss our planet by millions of miles? Because even slight changes to an asteroid’s trajectory – say, from being nudged by another asteroid or influenced by the gravity of a planet – could send nearby objects like these on a direct collision course with Earth.

Fortunately, NASA’s calculations show that no known asteroids are currently on a path to hit Earth any time for at least 100 years. Should a large asteroid one day pose a direct threat to our planet, astronomers are already working on methods to thwart it. That was the motivation behind NASA’s recent Double Asteroid Redirection Test (DART) mission, which intentionally smashed a rocket into an asteroid to alter its orbital speed. The mission did not destroy its target outright, but did prove that head-on rocket attacks are capable of changing a space rock’s orbital parameters in significant ways.

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Business

Chancellor’s Mansion House speech vows to rip up red tape – saying post-financial crash rules went ‘too far’

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Chancellor's Mansion House speech vows to rip up red tape - saying post-financial crash rules went 'too far'

Chancellor Rachel Reeves has criticised post-financial crash regulation, saying it has “gone too far” – setting a course for cutting red tape in her first speech to Britain’s most important gathering of financiers and business leaders.

Increased rules on lenders that followed the 2008 crisis have had “unintended consequences”, Ms Reeves will say in her Mansion House address to industry and the City of London’s lord mayor.

“The UK has been regulating for risk, but not regulating for growth,” she will say.

It cannot be taken for granted that the UK will remain a global financial centre, she is expected to add.

Money blog: Britain’s most affordable town revealed

It’s anticipated Ms Reeves will on Thursday announce “growth-focused remits” for financial regulators and next year publish the first strategy for financial services growth and competitiveness.

Rachel Reeves
Image:
Rachel Reeves


Bank governor to point out ‘consequences’ of Brexit

Also at the Mansion House dinner the governor of the Bank of England Andrew Bailey will say the UK economy is bigger than we think because we’re not measuring it properly.

A new measure to be used by the Office for National Statistics (ONS) – which will include the value of data – will probably be “worth a per cent or two on GDP”. GDP is a key way of tracking economic growth and counts the value of everything produced.

Brexit has reduced the level of goods coming into the UK, Mr Bailey will also say, and the government must be alert to and welcome opportunities to rebuild relations.

Mr Bailey will caveat he takes no position on “Brexit per se” but does have to point out its consequences.

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Bailey: Inflation expected to rise

In what appears to be a reference to the debate around UK immigration policy, Mr Bailey will also say the UK’s ageing population means there are fewer workers, which should be included in the discussion.

The greying labour force “makes the productivity and investment issue all the more important”.

“I will also say this: when we think about broad policy on labour supply, the economic arguments must feature in the debate,” he’s due to add.

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The exact numbers of people at work are unknown in part due to fewer people answering the phone when the ONS call.

Mr Bailey described this as “a substantial problem”.

He will say: “I do struggle to explain when my fellow [central bank] governors ask me why the British are particularly bad at this. The Bank, alongside other users, including the Treasury, continue to engage with the ONS on efforts to tackle these problems and improve the quality of UK labour market data.”

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Politics

Chancellor’s Mansion House speech vows to rip up red tape – saying post-financial crash rules went ‘too far’

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on

By

Chancellor's Mansion House speech vows to rip up red tape - saying post-financial crash rules went 'too far'

Chancellor Rachel Reeves has criticised post-financial crash regulation, saying it has “gone too far” – setting a course for cutting red tape in her first speech to Britain’s most important gathering of financiers and business leaders.

Increased rules on lenders that followed the 2008 crisis have had “unintended consequences”, Ms Reeves will say in her Mansion House address to industry and the City of London’s lord mayor.

“The UK has been regulating for risk, but not regulating for growth,” she will say.

It cannot be taken for granted that the UK will remain a global financial centre, she is expected to add.

Money blog: Britain’s most affordable town revealed

It’s anticipated Ms Reeves will on Thursday announce “growth-focused remits” for financial regulators and next year publish the first strategy for financial services growth and competitiveness.

Rachel Reeves
Image:
Rachel Reeves


Bank governor to point out ‘consequences’ of Brexit

Also at the Mansion House dinner the governor of the Bank of England Andrew Bailey will say the UK economy is bigger than we think because we’re not measuring it properly.

A new measure to be used by the Office for National Statistics (ONS) – which will include the value of data – will probably be “worth a per cent or two on GDP”. GDP is a key way of tracking economic growth and counts the value of everything produced.

Brexit has reduced the level of goods coming into the UK, Mr Bailey will also say, and the government must be alert to and welcome opportunities to rebuild relations.

Mr Bailey will caveat he takes no position on “Brexit per se” but does have to point out its consequences.

Please use Chrome browser for a more accessible video player

Bailey: Inflation expected to rise

In what appears to be a reference to the debate around UK immigration policy, Mr Bailey will also say the UK’s ageing population means there are fewer workers, which should be included in the discussion.

The greying labour force “makes the productivity and investment issue all the more important”.

“I will also say this: when we think about broad policy on labour supply, the economic arguments must feature in the debate,” he’s due to add.

Follow Sky News on WhatsApp
Follow Sky News on WhatsApp

Keep up with all the latest news from the UK and around the world by following Sky News

Tap here

The exact numbers of people at work are unknown in part due to fewer people answering the phone when the ONS call.

Mr Bailey described this as “a substantial problem”.

He will say: “I do struggle to explain when my fellow [central bank] governors ask me why the British are particularly bad at this. The Bank, alongside other users, including the Treasury, continue to engage with the ONS on efforts to tackle these problems and improve the quality of UK labour market data.”

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Environment

China powers up the world’s largest open-sea offshore solar farm

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China powers up the world's largest open-sea offshore solar farm

China’s CHN Energy has connected the first solar units from its 1-gigawatt (GW) offshore solar farm – the world’s first and largest of its kind – to the grid.

The massive project is located off the coast of Dongying City in Shandong Province, eastern China.

Developed by CHN Energy’s Guohua Energy Investment Co., it aims to serve as a benchmark for future large-scale offshore solar farms.

The project sits 8 km (5 miles) off the coast and spans an impressive 1,223 hectares (3,023 acres). It uses 2,934 solar platforms that rest on large-scale offshore steel truss foundations, each platform measuring 60m (197 feet) by 35m (115 feet).

It’s the first time in China that a 66-kilovolt offshore cable paired with an onshore cable has been used for high-capacity, long-distance electricity transmission in the solar sector.

Once completed, this offshore solar farm is expected to generate 1.78 billion kilowatt-hours of electricity annually – enough to power around 2.67 million urban homes. It could also help save about 503,800 tons of standard coal and cut down carbon dioxide emissions by roughly 1.34 million tons annually.

The project also includes fish farming, making better use of the marine space by integrating renewable energy with aquaculture.

Read more: Chinese solar giant Trina sells its Texas factory a week after it opens


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