NASA reveals ‘incredible’ findings from asteroid that could explain origins of life on Earth
NASA has revealed its “incredible” findings from a sample that was scooped up from the surface of an asteroid and delivered to Earth by spacecraft.
The sample, ancient black dust and chunks, was collected from the carbon-rich asteroid named Bennu, almost 60 million miles away.
It is the largest ever returned to Earth.
NASA‘s Osiris-Rex spacecraft collected the samples three years ago and then dropped them off sealed in a capsule during a flyby of Earth last month.
Asteroid Bennu seen from the Osiris-Rex spacecraft. Pic: NASA/AP
Scientists hope it can shed light on the origin of the solar system and of life on Earth.
An Osiris-Rex sample analyst, Daniel Glavin, said during a news conference to reveal the material that the sample was “loaded with organics”.
“This is just incredible material,” he said.
“This stuff is an astrobiologist’s dream, I just can’t wait to get at it.”
The scientists have been investigating whether asteroids like Bennu seeded the Earth with pre-biotic chemicals.
Mr Glavin said: “We’re going to learn so much about the origin of the solar system, the evolution and potentially how even life started here on Earth.”
Dante Lauretta, Osiris-Rex principal investigator, said the different sized stones contained in the sample would provide invaluable information for scientists.
‘Something from space we have never seen in our laboratories’
“Something like that would not make it to the surface of the Earth as a meteorite,” he said.
“So to have something from space that we have never seen in our laboratories, there is nothing more exciting.”
Bennu is considered the most dangerous asteroid in the Solar System – although NASA has estimated its chances of actually hitting Earth in 2182 are remote, at just one in 2,700, or 0.037%.
Lori Glaze, director of the agency’s planetary science division, explained how the latest sample could help protect our planet from a catastrophic impact with a space object.
She said the mission allowed NASA to measure a small force created by the sun’s heat and an asteroid’s rotation – explaining this force was “really important for helping us to predict when a particular asteroid might be dangerous”.
A recovery team member examines a capsule containing NASA’s first asteroid samples before it is taken to a temporary clean room at Dugway Proving Ground in Utah
“What we really want to know is if an asteroid is going to cross over Earth’s orbit at the same time that we are in that place, and we want to not be in that place when an asteroid comes by,” she said.
Administrator Bill Nelson – explained the discovery was unprecedented.
“At nearly 5% carbon by weight, carbon being the central element of life, far exceeding our goal of 60g, this is the biggest carbon-rich asteroid sample ever returned to earth,” he said.
Carbon and water molecules are “exactly the kind of material that we wanted to find”, Mr Nelson added.
“They are going to help us determine the origin of elements that could have led to life.”
A view of the outside of the OSIRIS-REx sample collector.
Pic:NASA/Reuters
Sky News Science Correspondent Thomas Moore explains what it all means.
So much material has been brought back from asteroid Bennu that it has spilled out of the collection cannister.
NASA scientists still haven’t got inside – they’ve been carefully sweeping together their “bonus sample” to make sure it’s not wasted.
It’s slowed them down, so they’ve only had time to do a basic analysis of the material in the fortnight or so since the capsule parachuted down to Utah’s western desert last month.
Results so far show that it is rich in carbon, an essential element for the organic molecules that are the building blocks of life.
And stunning high magnification images taken with an electron microscope reveal fibrous clay particles that contain water.
That adds to evidence that asteroids bombarding planet Earth billions of years ago brought water that formed the oceans, and also the seeds of life.
But this is just the start.
They now need to work out exactly what chemicals are in the sample.
Analysis of material brought back from another asteroid called Ryugu by a Japanese spacecraft revealed dozens of organic compounds, including amino acids that form proteins.
There was only a tiny amount of material brought back from Ryugu and scientists haven’t yet been able to detect any of the chemical ingredients for making RNA and DNA, the genetic codes of life on Earth.
But there is much more material brought back from Bennu.
Just over a quarter of the material will be analysed over the next two years by scientists at laboratories around the world, including a team at the Natural History Museum in London.
The rest will be preserved for future analysis, as NASA says, by scientists who haven’t been born yet using techniques that can only be imagined.
That might tell us more about our origins. But perhaps also give clues to how our planet formed.
Bennu is a window into the early days of the solar system, 4.5 billion years ago. It’s likely to have changed very little since it was formed from loose rubble orbiting between Mars and Jupiter.
The planets would have been formed from the same material. But Bennu’s material is pristine, unchanged by the intense heat and pressure involved in making a planet.
You can sense the excitement of the scientists. They’ve had so many questions about our place in the Universe.
And with the Bennu sample they might start getting some answers.
World
‘At least 798 killed’ at Gaza aid points – as medical charity warns acute malnutrition at all-time high
At least 798 people in Gaza have reportedly been killed while receiving aid in the past six weeks – while acute malnutrition is said to have reached an all-time high.
The UN human rights office said 615 of the deaths – between 27 May and 7 July – were “in the vicinity” of sites run by the controversial US and Israel-backed Gaza Humanitarian Foundation (GHF).
A further 183 people killed were “presumably on the route of aid convoys,” said Ravina Shamdasani, from the Office of the UN High Commissioner for Human Rights.
Its figures are based on a range of sources, including hospitals, cemeteries, and families in the Gaza Strip, as well as non-governmental organisations (NGOs), its partners on the ground, and Hamas-run health authorities.
Aid agency Project Hope said on Thursday that 10 children were among at least 15 people killed as they waited for its clinic in Deir al Balah to open.
Ten children were reportedly killed when Israel attacked near a clinic on Thursday. Pic: AP
The GHF has claimed the UN figures are “false and misleading” and has repeatedly denied any violence at or around its sites.
Meanwhile, Medecins Sans Frontieres (MSF) – also known as Doctors Without Borders – said two of its sites were seeing their worst-ever levels of severe malnutrition.
Cases at its Gaza City clinic are said to have tripled from 293 in May to 983 in early July.
“Over 700 pregnant or breastfeeding women and nearly 500 children are now receiving emergency nutritional care,” MSF said.
The humanitarian medical charity said food prices were at extreme levels, with sugar at $766 (£567) per kilo and flour $30 (£22) per kilo, and many families surviving on one meal of rice or lentils a day.
It’s a major concern for the estimated 55,000 pregnant women in Gaza, who risk miscarriage, stillbirth and malnourished infants because of the shortages.
The GHF began distributing food packages in Gaza at the end of May, after Israel eased its 11-week blockade of aid into the coastal territory.
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US aid contractors claim live ammo fired at Palestinians
It has four distribution centres, three of which are in the southern Gaza Strip.
The sites, kept off-limits to independent media, are guarded by private security contractors and located in zones where the Israeli military operates.
Palestinian witnesses say Israeli forces have repeatedly opened fire towards crowds of people going to receive aid.
The Israeli military says it has fired warning shots at people who have behaved in what it says is a suspicious manner.
It says its forces operate near the aid sites to stop supplies from falling into the hands of militants.
Read more:
GHF aid distribution linked to increased deaths
Gaza situation ‘apocalyptic’, says UN expert
After the deaths of hundreds of Palestinians trying to reach the aid hubs, the United Nations has called the GHF’s aid model “inherently unsafe” and a violation of humanitarian impartiality standards.
Listen to The World with Richard Engel and Yalda Hakim every Wednesday
In response, a GHF spokesperson said: “The fact is the most deadly attacks on aid sites have been linked to UN convoys.”
The GHF says it has delivered more than 70 million meals to Gazans in five weeks and claims other humanitarian groups had “nearly all of their aid looted” by Hamas or criminal gangs.
At least 798 people in Gaza have been killed while receiving aid in six weeks, the UN human rights office has said.
A spokesperson for the Office of the United Nations High Commissioner for Human Rights said 615 of the killings were “in the vicinity” of sites run by the controversial US and Israel-backed Gaza Humanitarian Foundation (GHF).
A further 183 people killed were “presumably on the route of aid convoys,” Ravina Shamdasani told reporters in Geneva.
The office said its figures are based on numbers from a range of sources, including hospitals, cemeteries and families in the Gaza Strip, as well as NGOs, its partners on the ground and the Hamas-run health authorities.
The GHF has claimed the figures are “false and misleading”. It has repeatedly denied there has been any violence at or around its sites.
The organisation began distributing food packages in Gaza at the end of May, after Israel eased its 11-week blockade of aid into the enclave.
It has four distribution centres, three of which are in the southern Gaza Strip. The sites, kept off-limits to independent media, are guarded by private security contractors and located in zones where the Israeli military operates.
Palestinian witnesses say Israeli forces have repeatedly opened fire towards crowds of people going to receive aid.
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US aid contractors claim live ammo fired at Palestinians
The Israeli military says it has fired warning shots at people who have behaved in what they say is a suspicious manner.
It says its forces operate near the aid sites to stop supplies falling into the hands of militants.
Read more:
GHF aid distribution linked to increased deaths
Gaza situation ‘apocalyptic’, says UN expert
After the deaths of hundreds of Palestinians trying to reach the aid hubs, the United Nations has called the GHF’s aid model “inherently unsafe” and a violation of humanitarian impartiality standards.
Listen to The World with Richard Engel and Yalda Hakim every Wednesday
In response, a GHF spokesperson told the Reuters news agency: “The fact is the most deadly attacks on aid sites have been linked to UN convoys.”
The GHF says it has delivered more than 70 million meals to Gazans in five weeks and claims other humanitarian groups had “nearly all of their aid looted” by Hamas or criminal gangs.
Ten children and two women are among at least 15 killed in an airstrike near a Gaza health clinic, according to an aid organisation.
Project Hope said it happened this morning near Altayara Junction, in Deir al Balah, as patients waited for the clinic to open.
The organisation’s president called it a “blatant violation of international humanitarian law, and a stark reminder that no one and no place is safe in Gaza“.
“No child waiting for food and medicine should face the risk of being bombed,” added the group’s project manager, Dr Mithqal Abutaha.
“It was a horrific scene. People had to come seeking health and support, instead they faced death.”
Operations at the clinic – which provides a range of health and maternity services – have been suspended.
Some of the children were reportedly waiting to receive nutritional supplements, necessary due to the dire shortage of food being allowed into Gaza.
Israel‘s military is investigating and said it was targeting a militant who took part in the 7 October terror attack.
“The IDF [Israel Defence Force] regrets any harm to uninvolved individuals and operates to minimize harm as much as possible,” added.
The deaths come as an agreement over a 60-day truce hangs in the balance – with President Trump cautiously saying it could happen “this week, or next week”.
Elsewhere in Gaza, the Nasser Hospital reported another 21 deaths in airstrikes in Khan Younis and in the nearby coastal area of Muwasi.
It said three children and their mother were among the dead.
Israel said its troops have been dismantling more than 130 Hamas infrastructure sites in Khan Younis over the past week, including missile launch sites, weapons storage facilities and a 500m tunnel.
On Wednesday, a soldier was shot dead when militants burst out of a tunnel and tried to abduct him, the military added.
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Do Trump and Netanyahu really get along?
Eighteen soldiers have been killed in the past three weeks – one of the deadliest periods for the Israeli army in months.
A 22-year-old Israeli man was also killed on Thursday by two attackers in a supermarket in the Israeli-occupied West Bank, said the Magen David Adom emergency service.
People on site reportedly shot and killed the attackers but information on their identity has so far not been released.
Read more:
IDF chief says conditions ‘created’ for Gaza ceasefire
What is the possible Gaza hostage and ceasefire deal ?
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Lack of food and water ‘lethal’ for Gaza children
Negotiations over a proposed 60-day ceasefire are ongoing and President Trump reportedly put “heavy” pressure on Israel’s leader, who visited the US this week.
A major sticking point is said to be the status of the Israel Defence Forces (IDF) inside Gaza during the 60-day ceasefire and beyond, should it last longer.
However, Sky News understands the Israeli government thinks the chances of a permanent truce are “questionable”.
Listen to The World with Richard Engel and Yalda Hakim every Wednesday
More than 57,000 Palestinians have been killed in the war – more than half are women and children, according to Gaza’s Hamas-controlled health ministry.
Its figure does not differentiate between civilians and fighters.
The war began in October 2023 after Hamas killed around 1,200 people in Israel and kidnapped 251 others.
Some of them remain In Gaza and are a crucial part of ceasefire negotiations, which also include a planned surge in humanitarian aid into the strip.
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