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Aditya-L1, Gaganyaan, Chandrayaan-3 And More: Here's The Status Of All ISRO Missions

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A Star That Exploded 40 Years Ago Is Breaking The Rules, Scientists Call It A Treasure

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Astronomers are studying a white dwarf star and it is behaving strangely. It is part of a nova system HM Sagittae (HM Sge) that includes the white dwarf and its red giant companion.

A nova event is defined as a brief explosion which causes a blinding flash and sends the accumulating material into outer space.

Using data from the Hubble telescope and the retired SOFIA observatory, scientists have found some baffling characteristics of this binary star system.

Since its explosion about 40 years ago, HM Sge, which lies 3,400 light-years away in the constellation Sagitta, has grown 250 times brighter. Besides, it did not rapidly fade away as novae commonly do, but has maintained its luminosity for decades.

What’s more confusing is that although the system got hotter, it has paradoxically faded a little.

Hubble’s view of the symbiotic star system. Image: NASA

ALSO SEE: Scientists Spot Massive Asteroid Collision — In Another Solar System

Since HM Sge is a symbiotic star, the dust from the red star and gas of the white dwarf combine to form a blazing hot disk around the latter. This then results in a spontaneous thermonuclear explosion.

Another thing scientists noted was the system’s increase in temperature. According to Hubble’s ultraviolet data, the white dwarf and accretion disk increased from less than 4,00,000 degrees Fahrenheit in 1989 to greater than 450,000 degrees Fahrenheit today.

ALSO SEE: Hubble Telescope Captures Ancient Galaxy That Ate Its Companion 1.3 Billion Years Ago

“When I first saw the new data, I went – ‘wow this is what Hubble UV spectroscopy can do!’ – I mean it’s spectacular, really spectacular,” said Ravi Sankrit, astronomer at the Space Telescope Science Institute (STScI).

Steven Goldman of STScI, who also worked on the study, said that symbiotic stars in our galaxy are rare. “This unique event is a treasure for astrophysicists spanning decades,” he said. The above findings are expected to provide more insights into the physics and dynamics of stellar evolution in binary systems.

(Image: NASA)





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Aliens Could Be Living On Earth Disguised As Humans: Harvard Research

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A team of researchers from Harvard University has put forth the possibility of aliens, or “cryptoterrestrials,” covertly living among humans on Earth.

In their paper, which delves into the realm of “unidentified anomalous phenomena” (UAP), commonly known as UFOs and extraterrestrial beings, has sparked a wave of intrigue and speculation within the scientific community.

The study suggests that aliens could be residing underground, on the Moon, or even walking among us, disguised as ordinary humans. It further says that unidentified flying objects (UFOs) or unidentified aerial phenomena (UAP) could be advanced spaceships visiting Earth-based alien friends or allies.

In their research, the experts have introduced the concept of “cryptoterrestrials” – beings that may have originated from Earth’s future, descended from intelligent dinosaurs, or even be remnants of an ancient, technologically advanced human civilization that largely perished long ago.

Admitting that their theories will be regarded skeptically by most scientists, the researchers urged the scientific community to consider their claim “in a spirit of epistemic humility and openness.” Notably, the paper has not been peer-reviewed.

ALSO SEE: Is Artificial Intelligence Keeping Us From Contacting Aliens? New Study Suggests So

Aliens could be around us in four forms: Scientists

According to the researchers, cryptoterrestrials can come in four forms. The first is human cryptoterrestrials that are technologically advanced ancient human civilisation that continue to exist in remnant form after being destroyed long ago.

Second is Hominid or Theropod Cryptoterrestrials i.e. a technologically advanced non-human civilization consisting of some terrestrial animal which evolved a stealthy way to exist.

ALSO SEE: ‘We Are Probably Alone’: Elon Musk Gets Candid On Aliens And Colonising Mars ‘Before World War 3’

Third is former Extraterrestrial or Extratempestrial Cryptoterrestrials – beings that arrived on Earth from elsewhere in the cosmos or from the future and concealed themselves, maybe on the Moon.

And fourth, the scientists said, are entities that are less like homegrown aliens and more like “earthbound angels.”



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Are ISS Astronauts In Trouble? NASA Clarifies After It Accidentally Airs Audio Causing Panic

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NASA, on June 13, clarified that the medical emergency audio streamed online earlier today was nothing serious. The agency said that the accidentally aired audio of a space station crew member experiencing decompression sickness was part of a medical drill.

In a post on X, NASA assured that there is no emergency situation going on aboard the International Space Station (ISS).

“This audio was inadvertently misrouted from an ongoing simulation where crew members and ground teams train for various scenarios in space and is not related to a real emergency,” it said. “The International Space Station crew members were in their sleep period at the time.”

The audio in question was reportedly of a flight surgeon at SpaceX’s mission control centre in Hawthorne, California. Panic ensued when she was heard directing a crew member to ensure ample oxygen supply and checking the pulse of the patient.

ALSO SEE: NASA Astronauts To Look For Microbes Outside ISS In Next Spacewalk; Watch Live On June 13

After NASA’s statement, SpaceX also issued a clarification saying, “This was only a test. The crew training in Hawthorne is safe and healthy as is the Dragon spacecraft docked to the space station.”

There are currently nine astronauts onboard the station including visitors Sunita Williams and Barry Wilmore – who are on Boeing’s debut crew test mission.

ALSO SEE: NASA To Soon Begin Training Of Indian Astronauts For ISS Mission 2024

(Image: NASA)





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