USA

The Sun Will Die… But Don’t Worry, It Won’t Happen For 5 Billion Years, ESA Predicts


The European Space Agency’s (ESA) Gaia spacecraft has made a chilling prediction that our sun is almost halfway through its lifespan and when it reaches the end it will swell and wipe out our planet – but data from the craft suggest this won’t happen for at least another five billion years.

Gaia determined that the sun was around 4.57 billion years old and by identifying its mass and composition, the device estimated how the sun will evolve in the future.

The road to its disappearance begins around 10 to 11 billion years ago when it becomes a red giant and rapidly increases significantly in size.

From there, the sun rushes to its death and ends up as a cold, dark white dwarf – the hot, dense core of a dead star.

Right now, the sun is considered “middle-aged” and stable because it fuses hydrogen into helium.

Scroll down for video

The European Space Agency (ESA) Gaia spacecraft has determined that our sun was 4.57 billion years ago, considering it to be middle-aged

Gaia is located approximately 930,000 miles from Earth and carries two telescopes to document the galaxy, while studying stars to predict their future.

And although humans have long believed that the sun will soon swallow the whole Earth, the latest data from the ESA puts those fears to rest.

Our planet is not doomed once the sun reaches eight billion years of age, as Gaia has determined that is when it will peak in temperature.

At least two billion years later, the sun will begin to cool and grow in size to more than double what it is today. It is approximately 846,000 miles wide.

Orlagh Creevey, an astronomer in France who works with Gaia, explained that finding stars similar to our sun is essential so we can understand how it fits into the universe.

The road to its disappearance begins around 10 to 11 billion years ago when it becomes a red giant and rapidly increases significantly in size.  From there, the sun rushes to its death and ends up as a cold, dark white dwarf - the hot, dense core of a dead star

The road to its disappearance begins around 10 to 11 billion years ago when it becomes a red giant and rapidly increases significantly in size. From there, the sun rushes to its death and ends up as a cold, dark white dwarf – the hot, dense core of a dead star

“If we don’t understand our own Sun – and there’s a lot we don’t know about it – how can we hope to understand all the other stars that make up our wonderful galaxy,” he said in a statement. .

“It is ironic that the sun is our closest and most studied star, but its proximity forces us to study it with completely different telescopes and instruments than those we use to look at the rest of the planets. stars.”

Earth’s sun contains a large amount of iron, which makes it brighter than other stars.

“By identifying stars similar to the Sun, but this time with similar ages, we can close this observation gap,” the researchers shared.

The sun has been in the news lately for its explosive activity.

More recently this week, news spread of a “cannibalistic” ejection that sent energetic and highly magnetized and superheated gas towards Earth.

This flow, known as the coronal mass ejection (CME), ejected from sunspot AR3078 on Monday, then engulfed a previous ejection that had been published the day before – viewing it as a cannibal. It became a “mix of both” with entangled magnetic fields and compressed plasma, a highly ionized gas, which is known to cause strong geomagnetic storms.

Our planet is not doomed once the sun is eight billion years old, as Gaia has determined that is when it will peak in temperature.

Our planet is not doomed once the sun is eight billion years old, as Gaia has determined that is when it will peak in temperature.

CMEs can eject billions of tons of corona material from the surface of the sun. The material consists of plasma and magnetic field.

Such flares have the potential to trigger space weather that can interfere with satellites and power grids on Earth, and can be harmful to unprotected astronauts.

Auroras were seen on July 19 after a solar storm hit Earth, producing electric greens and purples across the northern United States and Canada.

Shortly after, on August 3, there was another solar storm warning.

There was also a C9.3 eruption that erupted from the sun that Sunday, but it did not erupt on the side of the sun facing Earth.

However, it caused enough of a stir to be captured by NASA’s Solar Dynamics Observatory – a craft that has studied our massive star since its launch in 2010.

Mike Cook, who works in space weather operations, told DailyMail.com there was a coronal hole in the southwestern region of the sun’s face which was spitting out “gaseous matter”.

This solar wind increased speed by throwing the solar winds into a current.

The Sun’s recent increase in activity is a result of its approaching the most active phase of its 11-year solar cycle – peaking in 2024.

Studies have shown that the level of solar activity occurring now is about the same as it was 11 years ago, at the same point in the last cycle.

WHAT IS THE EUROPEAN SPACE AGENCY’S GAIA PROBE AND WHAT IS DESIGNED TO DO?

Gaia is an ambitious mission to draw a three-dimensional map of our galaxy, the Milky Way, and in the process reveal its composition, formation and evolution.

Gaia has orbited the sun nearly a million kilometers beyond Earth’s orbit since its launch by the European Space Agency (ESA) in December 2013.

During its journey, the probe quietly took pictures of the Milky Way, identifying stars in smaller galaxies long ago engulfed by ours.

Tens of thousands of previously undetected objects are expected to be discovered by Gaia, including asteroids that could one day threaten Earth, planets surrounding nearby stars, and explosive supernovae.

Artist's impression of Gaia mapping the stars of the Milky Way.  Gaia's mapping effort is already on an unprecedented scale, but it still has many years to go.  Gaia maps the position of stars in the Milky Way in several ways.  It pinpoints the location of stars but the probe can also trace their movement, scanning each star around 70 times

Artist’s impression of Gaia mapping the stars of the Milky Way. Gaia maps the position of stars in the Milky Way in several ways. It pinpoints the location of stars but the probe can also trace their movement, scanning each star around 70 times

Astrophysicists also hope to learn more about the distribution of dark matter, the invisible stuff thought to hold the observable universe together.

They also plan to test Albert Einstein’s theory of general relativity by observing how light is deflected by the sun and its planets.

The satellite’s billion-pixel camera, the largest ever seen in space, is so powerful that it would be able to measure the diameter of a human hair from a distance of 621 miles (1,000 km).

This means that nearby stars have been located with unprecedented accuracy.

Gaia maps the position of stars in the Milky Way in several ways.

Panoramic view from Gaia of our Milky Way and nearby galaxies, based on measurements of nearly 1.7 billion stars.  The map shows the total brightness and color of stars observed by the ESA satellite in each part of the sky between July 2014 and May 2016. Brighter regions indicate denser concentrations of particularly bright stars, while regions darker correspond to areas of the sky where fewer bright stars are observed.  The color representation is obtained by combining the total amount of light with the amount of blue and red light recorded by Gaia in each part of the sky.

Panoramic view from Gaia of our Milky Way and nearby galaxies, based on measurements of nearly 1.7 billion stars. The map shows the total brightness and color of stars observed by the ESA satellite in each part of the sky between July 2014 and May 2016. Brighter regions indicate denser concentrations of particularly bright stars, while regions darker correspond to areas of the sky where fewer bright stars are observed. The color representation is obtained by combining the total amount of light with the amount of blue and red light recorded by Gaia in each part of the sky.

It tracks the location of stars but the probe can also track their movement, scanning each star around 70 times.

This is what allows scientists to calculate the distance between Earth and each star, which is a crucial measurement.

In September 2016, ESA released the first batch of data collected by Gaia, which included information on the brightness and position of over a billion stars.

In April 2018, this was extended to high-precision measurements of nearly 1.7 billion stars.

dailymail us

Not all news on the site expresses the point of view of the site, but we transmit this news automatically and translate it through programmatic technology on the site and not from a human editor.
Back to top button