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‘City killer’ asteroid to pass harmlessly between Earth and moon

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An asteroid big enough to wipe out a city will pass harmlessly between Earth and the moon’s orbit this weekend, missing both, while providing scientists a chance to study the object close up.

Asteroid flybys are common but Nasa said it was rare for one so big to come so close and that events like this occurred only about once a decade. Scientists estimate its size to be somewhere between 40 and 90 metres in diameter.

Discovered a month ago, the asteroid known as 2023 DZ2 will pass within 515,000km of the moon on Saturday US time and, several hours later, fly past the Earth at about 28,000km/h.

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The close encounter will provide astronomers the chance to study a space rock from just over 68,000km away. At less than half the distance from here to the moon, the asteroid will be visible through binoculars and small telescopes.

An image of space including asteroid 2023 DZ2, indicated by an arrow

“There is no chance of this ‘city killer’ striking Earth, but its close approach offers a great opportunity for observations,” the European Space Agency’s planetary defence chief, Richard Moissl, said in a statement.

Astronomers with the International Asteroid Warning Network see it as good practice for planetary defence if and when a dangerous asteroid is discovered that could hit Earth, according to Nasa.

The Virtual Telescope Project will provide a live webcast of the close approach.

The asteroid won’t be back our way again until 2026. Initially there seemed to be a slight chance it might strike Earth when it returned, but scientists have since ruled that out.

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Eta Aquariids meteor shower: Fireball streaks across BC sky

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A bright green fireball streaked across the Okanagan sky Wednesday night, and sightings were reported elsewhere in southern B.C.

The exciting celestial event occurred just before 10 p.m. Wednesday and residents across Kelowna, Kamloops and down to Osoyoos reported seeing the fireball.

One Castanet reader who lives near Kelowna International Airport said it appeared in the sky to the west.

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“It didn’t have a fast movement to it, it sort of came flowing down,” he said. “It was a very bright green, beautiful orb, just very strange, that fell out of the sky last night.”

Kamloops resident Justin Moss caught the event on his house’s surveillance camera, pointing south towards the TRU campus.

People living on Vancouver Island posted online about seeing the event as well, along with others in Washington State.

While it’s not clear what the fireball in the sky was, the Eta Aquariids meteor shower is currently ongoing. The meteor shower, associated with Halley’s Comet, generally runs from about April 19 to May 28 every year, peaking around May 5 or 6.

A meteor’s colour is indicative of the chemical makeup of a meteor. Those with a lot of nickel glow green when they burn up in the earth’s atmosphere.

 

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NASA Contractor Warns That Boeing Launch Must Be Stopped "Before Something Catastrophic Happens"

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“NASA needs to re-double safety checks and re-examine safety protocols to make sure the Starliner is safe before something catastrophic happens to the astronauts and to the people on the ground.”

Shut It Down

A NASA contractor is urging the space agency to suspend the upcoming Boeing Starliner launch over major safety concerns with the aerospace company’s wares.

In a press release, the president of ValveTech, a NASA contractor that supplies the agency with parts, warned that the buzzing sound heard during the now-scrubbed Starliner launch could indicate something seriously wrong with the transport capsule.

“As a valued NASA partner and as valve experts, we strongly urge them not to attempt a second launch due to the risk of a disaster occurring on the launchpad,” ValveTech president Erin Faville cautioned. “According to media reports, a buzzing sound indicating the leaking valve was noticed by someone walking by the Starliner minutes before launch. This sound could indicate that the valve has passed its lifecycle.”

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After the incident, which occurred just before Starliner was supposed to attempt its first crewed launch earlier in May, NASA has said that it won’t try again until at least May 17. According to Faville, much needs to be be done between now and then to head off the worst possible outcomes.

“NASA needs to re-double safety checks and re-examine safety protocols,” he said, “to make sure the Starliner is safe before something catastrophic happens to the astronauts and to the people on the ground.”

Bad News Boeing

The CEO of United Launch Alliance, which is launching the craft into orbit, pushed back strongly on X-formerly-Twitter.

“Not sure what to say about this one,” he wrote. “Close to none of it is correct: Not urgent. Not leaking. Etc. Remarkable that the particular person quoted doesn’t seem to know how this type of valve works.”

ValveTech’s warnings come not just after the scrubbed Starliner launch, but also after months of terrible press for Boeing that have included parts falling off its planes, government investigations, and two dead whistleblowers.

As the company’s press release notes, the launch scrub also occurred after a November 2023 ruling in which a federal court found that Boeing had used a valve from another aerospace company, Aerojet Rocketdyne, that copied ValveTech’s designs. The part was not, according to a witness in that trial, equipped for the job it was meant to do, and as far as the company can tell, it hasn’t been replaced.

“ValveTech continues to question how NASA, Boeing and Aerojet could have qualified this valve for the mission without proper supporting data or previous history or legacy information, which in its experience, goes against aerospace-industry qualification protocols established by NASA,” the press release reads.

All told, these are some pretty serious claims, and Futurism has reached out to NASA to ask if the parts in question have been replaced.

 

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Strong solar storm could trigger northern lights in United States

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Multiple outbursts from the sun could trigger magnificent auroras in many parts of the United States this weekend.

A severe geomagnetic storm is expected to hit Earth on Friday, triggering colorful nighttime auroras, or the northern lights. People in the United States could see moderate to strong geomagnetic activity starting around 11 p.m. and lasting through Saturday.

 

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