A Special Place for Blog Lovers with a Touch of Science!

Enjoy our special posts in the fields of Earth & Planetary Sciences (EPS Blog) and Social Sciences & Arts (SSA Blog)

A Special Place for Blog Lovers with a Touch of Science!

Sharpest image to date of the universe's most massive known star

Credit: Getty images

This star and possibly other colossal stars may be less massive than previously thought

Astronomers have yet to fully understand how the most massive stars — those more than 100 times the mass of the sun — are formed. One particularly challenging piece of this puzzle is obtaining observations of these giants, which typically dwell in the densely populated hearts of dust-shrouded star clusters.

Giant stars also live fast and die young, burning through their fuel reserves in only a few million years. In comparison, the sun is less than halfway through its 10-billion-year lifespan. The combination of densely packed stars, relatively short lifetimes and vast astronomical distances makes distinguishing individual massive stars in clusters a daunting technical challenge.

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Could that be our first contact with extraterrestrial technology?

Image credit: NASA / ESA / Hubble / ESO / M. Kornmesser.

"1I/2017 U1 'Oumuamua" — the first known interstellar object within the Solar System

In October 2017, a vague point of light was detected by the Pan-STARRS 1 telescope in Hawaii. At first, it looked like a typical small asteroid, but later observations made it possible for astronomers to figure its orbit more accurately. It turns out that it didn't match the behavior of any other asteroid or meteor observed so far. The enigmatic stranger, which was called 'Oumuamua flew past the sun, coming from 'above' the plane of the planets on a highly inclined orbit, with speed fast enough to escape the Sun's gravitational pull and eventually head out of our Solar System, speeding up.

Initially, it was assumed that the object is an interstellar comet since they are thought to be more numerous than interstellar asteroids. The problem was that there wasn't any trace of the typical hallmarks of cometary activity – no evidence of gas emission or dust. Therefore, there is no clue how does it change the anticipated trajectory of its orbit and why does it accelerate its speed.

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SSA Recent Posts

27 November 2022
Social Sciences & Arts (SSA)
Credit: Portrait Franz Kafka, around 1905; Getty Images Thoughts to reflect on 1. "A non-writing writer is a monster courting insanity." 2. "All language is but a poor translation." 3. "By believing passionately in something that still does not exist...
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25 November 2022
Social Sciences & Arts (SSA)
Credit: Getty images The First Eight-Octave Concert Grand Piano Vienna is undoubtedly the capital of western music. Not only some of the greatest compositors were born there but the city also played a pioneering role when it comes to instrument makin...
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23 November 2022
Social Sciences & Arts (SSA)
Image credit: www.sgemvienna.org IX SWS Conference of Social Sciences – Sessions "When Science meets Art" The IX SWS Conference of Social Sciences – Sessions "When Science meets Art" will focus on the possible multidisciplinary approaches betwee...
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