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Asteroid Bigger Than A Plane To Make Dangerously Close Flyby On April 1; NASA Reveals Its Scary Orbit

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Prepare for another asteroid’s close encounter as a space rock is hurtling toward us today on April 1. Designated 2024 FQ3, it will be just about twice the distance between the Earth and the Moon, which is not much on a cosmic scale.

Data from the Center For Near-Earth Object Studies (CNEOS) revealed that the asteroid will be 7,20,610 km from Earth at its closest. Travelling at a staggering speed of nearly 68,500 km per hour, the closest approach will be made at 9:53 pm IST.

Orbit of 2024 FQ3. Image: NASA

The CNEOS, which studies orbits of near-Earth asteroids and comets, also revealed the space rock’s path. It shows the asteroid breaching the Moon’s orbit around the Earth, bringing it dangerously close to our planet. The size of this asteroid, however, is relatively small – estimated between nine to 21 meters wide.

Moreover, April 2 will be an asteroid triple-header as three big ones will follow 2024 FQ3. The next incoming asteroids are 2024 FN3, 2024 FG3 and 2024 FR3 and the biggest of them is as much as 54 meters wide.

According to CNEOS, the asteroid FG3 is estimated to measure between 24-54 meters wide while the smallest of the batch – 2024 FR3 measures between 19 to 42 meters wide. All of these asteroids will fly by from a safe distance, the closest being 13.2 lakh km (FR3) and the farthest being 67.8 lakh km (FN3).

ALSO SEE: Water Is Discovered On Asteroids — By A Defunct NASA Mission

NASA keeps monitoring thousands of asteroids at a time which are big enough and have the potential to collide with Earth. These space rocks are called ‘potentially hazardous asteroids’ and they are classified as such when they are bigger than 140 meters and come within 75 lakh km distance from Earth.

ALSO SEE: Astronomers Have Discovered Over 30,000 Near-Earth Asteroids In The Last Decade, And The Number Is Still Rising

Asteroids are the one thing that pose the biggest threat to humanity from outer space. It is also something which governments have no defence against, which is why NASA launched the DART mission in 2021. The mission was ruled a success after it intentionally collided with an asteroid. A scaled up version of DART, scientists believe, could help save Earth from a planet-killing asteroid.



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NASA To Make Major Announcement On Its Ambitious Mars Sample Return Mission Today; Watch Live

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NASA is hosting a press conference on April 15 for a big announcement regarding its Mars Sample Return Mission. The agency said that the speakers will discuss the next steps of the mission aimed at retrieving samples collected by the Perseverance rover on Mars at 10:30 pm IST. The speakers include NASA Administrator, Bill Nelson and Associate Administrator of the Science Mission Directorate, Nicky Fox.

You can watch the teleconference live at NASA TV and its official website here. The discussion will be based on the report by the Independent Review Board which was set up in 2023 to evaluate the technical, cost, and schedule plans prior to confirmation of the mission’s design.

ALSO SEE: NASA Shares Views Of Perseverance Rover’s Sample Collection In Latest Milestone On Mars

The Mars sample return program, apart from its complexities, has a major problem to deal with – a supposedly ‘unrealistic’ budget. Ever since its landing in the Jezero crater on Mars, the Perseverance rover has collected two dozen soil and rock samples which are waiting to be shipped to Earth early next decade.

The samples are being collected because scientists believe they might have signs of ancient life on the red planet since it used to have oceans billions of years ago.

According to NASA’s plan, it will send a lander with a rocket to Mars which will transfer the samples to an orbiter built by ESA. This orbiter will then send the samples back to Earth. All this is expected to cost between $8 to $11 billion, the review board said in its report released last September. In the upcoming announcement, NASA might clear the air regarding the feasibility of the mission and if it is worth pursuing.

ALSO SEE: What Does A Solar Eclipse On Mars Look Like? NASA Answers With Breathtaking Views





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Mess Created By NASA Will Be Inspected By ESA’s Hera Mission; Here’s All About It

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The European Space Agency (ESA) is gearing up for an ambitious mission called Hera, set to launch in October 2024. The mission’s target will be Dimorphos, an asteroid orbiting the larger space rock Didymos.

Dimorphos gained international attention when it became the subject of NASA’s Double Asteroid Redirection Test (DART) mission. On September 26, 2022, NASA’s spacecraft intentionally collided with Dimorphos to test whether altering its orbit was a viable method of planetary defense.

Now, ESA’s Hera mission is poised to rendezvous with Dimorphos in 2026, building on the groundwork laid by DART. The objectives are ambitious: Hera will delve into the Didymos binary asteroid system, conducting the very first assessment of its internal properties. Additionally, it will meticulously analyse the aftermath of DART’s kinetic impactor test, including studying the crater left behind by the collision.

Hera represents a significant milestone in asteroid deflection technology, paving the way for future planetary defense strategies. By conducting a detailed post-impact survey of Dimorphos, Hera aims to transform the DART mission into a well-understood and repeatable defense technique.

ALSO SEE: NASA’s DART Mission’s Second Observer Captures Unsettling Images Of An Asteroid Crash

What makes Hera even more groundbreaking is its role as humankind’s first probe to rendezvous with a binary asteroid system. It will also be armed with innovative technologies, including autonomous navigation and low-gravity proximity operations.

Using ground-based telescopes, scientists know that DART changed Dimorphos’s velocity but they need a close-up inspection to determine the change in its mass. The HERA mission also includes two cubesats – Milani and Juventas – that will collectively investigate Dimorphos’s composition and change in its properties.

NASA ruled the DART mission a success after the spacecraft was able to change Dimorphos’s orbit around Didymos by 33 minutes. Scientists believe that this technology could one day help us deflect a planet-killing asteroid if one heads toward Earth someday.

ALSO SEE: Collision Of NASA’s DART With Asteroid Dimorphos Changed Its Shape; Finding Excites Scientists





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Unexpected Discovery In A Nebula 3,800 Light-Years Away Leaves Astronomers Surprised

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Astronomers peering into the depths of space have stumbled upon a celestial spectacle unlike any other – a stellar pair locked in a cosmic dance, surrounded by a mesmerizing cloud of gas and dust. But what sets this duo, dubbed HD 148937, apart from the stellar crowd is a remarkable tale of cosmic collision and rebirth.

Located a staggering 3800 light-years away in the Norma constellation, HD 148937 is home to two stars of immense magnitude, each boasting a mass far surpassing that of our Sun.

Yet, upon closer inspection, astronomers were met with a perplexing revelation – these stars, once thought to be twins, harbor striking differences. One star appears 1.5 million years younger and inexplicably magnetic, while its counterpart bears the marks of age and lacks magnetic allure.

Utilizing data collected over nine years from cutting-edge instruments like PIONIER, GRAVITY, and FEROS, astronomers uncovered a violent history. The evidence pointed to a tumultuous past, wherein three stars once roamed the system, until two stars collided, birthing the stunning nebula that now envelops HD 148937.

ALSO SEE: NASA’s Hubble Telescope Captures ‘Fierce And Fabulous’ Tarantula Nebula Brimming With Baby Stars

“The two inner stars merged in a violent manner, creating a magnetic star and throwing out some material, which created the nebula,” professor Hugues Sana, lead investigator explained in an official statement.

This cosmic ballet not only reshaped the system’s destiny but also shed light on a longstanding mystery in astronomy – the origin of magnetic fields in massive stars. While magnetic fields are common in stars like our Sun, their presence in more massive counterparts has long puzzled astronomers. The discovery of HD 148937 provides compelling evidence that such magnetic fields can arise from stellar mergers, a phenomenon observed only in theory until now.

“Magnetism in massive stars isn’t expected to last very long compared to the lifetime of the star, so it seems we have observed this rare event very soon after it happened,” said Abigail Frost, lead author of the new paper published in the journal Science.

ALSO SEE: ESO’s Very Large Telescope Captures ‘Gloomy Portrait’ Of Cone Nebula, A Staggering Star Factory





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