The Weather Channel India Profile picture
Aug 26, 2020 11 tweets 4 min read Read on X
India’s #AstroSat Discovers An Ancient Galaxy; Findings Could Explain Origin of Light Post #BigBang - by @MrigDixit

weather.com/en-IN/india/sp…

(📸: ESA/Hubble & NASA, A. Filippenko, R. Jansen) Image
➡️The breakthrough discovery, published on Monday, was made using AstroSat—the first multi-wavelength satellite of India. Image
➡️Launched by the Indian Space Research Organisation (@isro) on September 28, 2015, and developed by multiple research institutes from India and Canada, the satellite specialises in studying celestial sources in X-ray, optical and UV spectral bands simultaneously.
➡️The satellite, using its unique features, recently detected an extreme-ultraviolet light coming from the galaxy named AUDFs01. The discovery is expected to help our understanding of the earliest source of light in the universe.
➡️The new galaxy was found in the area of space called the Hubble eXtreme Deep Field by the wide-field UltraViolet Imaging Telescope (UVIT) of AstroSat.

As per reports, NASA’s Hubble Space Telescope (HST), which is larger than the UVIT, was unable to detect UV emission from...
...this galaxy as the signals were too faint.

AstroSat managed to identify it successfully since the background noise in the UVIT detector is comparatively lower than the HST. Image
➡️The authors of the study have noted that the research is significant in terms of enhancing our understanding of the universe’s early galaxies that are found only at extreme UV wavelengths.
➡️Studying the formation of the early stars and galaxies helps to understand the conditions which led to initial rays of light or radiation after a long period of Cosmic Dark Age in the early universe post the Bing Bang.
➡️Scientists believe that shortly after the big bang, the universe reached its highest temperature and gradually began to cool. During this time, it consisted mostly of subatomic particles like protons, neutrons, and photons. Image
The research paper states, “One of the outstanding problems of current observational cosmology is to understand the nature of sources that produced the bulk of the ionizing radiation after the Cosmic Dark Age.
➡️Some radiation does reach our space telescopes and this has been studied through this research.

As per reports, this is the first time a galaxy has been observed in the extreme ultraviolet light & will further help to shed light on the conditions of the early universe.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with The Weather Channel India

The Weather Channel India Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @weatherindia

Aug 17, 2022
While searching for life in the Gulf of Mexico, researchers pulled out a new bizarre-looking species of isopod, whose head resembles the Darth Vader from Star Wars!

Read: weather.com/en-IN/india/bi…

By: @anujav_97

📸: Dr Ming-Chih H/Journal of Natural History

🧵👇
This new-found crustacean, named Bathonymus yucatanensis, has 14 legs and is around 26 cm long — approximately 25 times larger than its closest relative, the common woodlouse.
While these blonde creatures seem pretty scary, the "Vanilla Vaders" are, in fact, harmless to humans.

Their huge size is only due to deep-sea gigantism — a phenomenon wherein ocean dwellers grow bigger than their terrestrial relatives due to lack of sunlight.

📸: SJADES 2018
Read 7 tweets
Aug 16, 2022
The Sun spewed out two consecutive coronal mass ejections on August 14-15, giving rise to a 'Cannibal CME'.

The scarier part? It's heading towards the Earth this week & could spark strong geomagnetic storms on Aug 18!

Read: weather.com/en-IN/india/sp…

By: @ashmitagupta_21

🧵👇
A cloud of dark plasma erupted on the solar surface on Aug 14, launching a #CME that could side sweep the Earth's magnetic field.

Then, on Aug 15, an exploding magnetic filament launched another CME right at its tail.
This could be a Cannibal CME event where the second CME might overtake and gobble up the first, creating a mish-mash of the two.

Cannibal CMEs contain tangled magnetic fields and compressed plasmas that can spark strong geomagnetic storms.

📽️: Animation by Walt Feimer/NASA
Read 7 tweets
Aug 6, 2022
Japan's #Subaru Strategic Program has discovered a super-Earth four times the mass of our planet orbiting a red dwarf just 37 lightyears away.

The good news? This #exoplanet, named Ross 508b, might be habitable!

Read: weather.com/en-IN/india/sp…

By: @ashmitagupta_21

🧵👇 Image
This super-Earth is a rocky world, on which a year is equal to just 11 Earth days.

The short orbit is down to the red dwarfs being a lot smaller than the Sun that centres our solar system. But the smaller sizes also make their gravitational fields less expansive than the Sun's. Image
Therefore, Ross 508b revolves around its red dwarf at a distance of just 5 million km. Mercury, in comparison, is about 60 million km from the Sun.

The short distance between this super-Earth & its red dwarf begs the question: how could it possibly be habitable? Image
Read 7 tweets
Jul 15, 2022
#Japan is making grand plans of creating interplanetary #trains and champagne flute-like glass habitats in its bid to send and host humans on the #Moon and #Mars!

Read: weather.com/en-IN/india/sp…

📸: Youtube SC/Kajima Corp.

Thread. 👇
An interplanetary transportation system dubbed the 'Hexatrack', which maintains a gravity of 1G during long-distance travel to mitigate the effects of prolonged exposure to low gravity, has been proposed by #Japanese researchers.
The #trains will also possess 'Hexacapsules', which are essentially hexagon-shaped capsules with a moving device in the middle.
Read 7 tweets
Jul 14, 2022
A new species of #dinosaur has just dropped and word on the street is that it’s pretty similar to the #TRex

In fact, researchers think this discovery could explain why these beasts evolved to have tiny arms!

Read: weather.com/en-IN/india/sc…

📸: Jorge A Gonzalez

Thread. 👇 Image
In 2012, the almost-complete skeleton of a new kind of #dinosaur was found in the northern Patagonia region of #Argentina.

The dinosaur has been christened #Meraxes gigas. The generic epithet is an ode to a dragon in the #GameOfThrones series.
Standing at the height of 11 m (36 ft) and weighing roughly 4000 kgs, the #dinosaur sported several crests, bumps and horns on its skull, which lent it a menacing appearance.

But the highlight of the findings is that the dinosaur had teeny-tiny arms, just like the #Trex! Image
Read 6 tweets
Jul 14, 2022
#NASA-led #JamesWebbSpaceTelescope's breathtaking images of the universe's past have taken the world by storm.

As we inch closer to unravelling more cosmic secrets, here's how researchers from #India plan to use the #JWST.

Read: weather.com/en-IN/india/sp…

Thread👇
#NASA had opened up submissions for Guaranteed Time Observations to reward scientists with 16% use of the JWST observatory for the first 3 cycles.

Out of the 1,173 proposals, two astronomers hail from India: Dr #JessyJose from @IiserTirupati & Dr #Puravankara from @TIFRScience.
Dr Jose, along with an international research team from the US, UK and Australia, will be examining the Galactic Centre Cloud (GCC) — the central molecular zone of our Milky Way — in April 2023.

They have been allotted 27.3 hours over the access period of 12 months.
Read 8 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(