Rajat

Rajat

Hubble: Galaxies Across Space and Time [Ultra HD, Captioned]
YouTube l https://www.youtube.com/

The sky looks the same behind every wall, unless you are in the Southern Hemisphere! "This award-winning short film transforms images and data from NASA's Hubble Space Telescope into a voyage that sweeps viewers across the universe and back into cosmic history.

The film opens with looming images of two mature galaxies that are relatively nearby Earth, and then pans through the vibrant and diverse panorama of thousands of galaxies in an image from the Great Observatories Origins Deep Survey. The ensuing 3-D journey through these galaxies provides more than just a new perspective in space; it also takes the audience back in time. Because light takes time to journey across space, the galaxies farther away from Earth are seen further back in cosmic history. The virtual voyage reveals galaxies as they appeared billions of years ago, when they were still in the process of forming."
Source: hubblesite.org

Rajat

Rajat

Whirlpool Galaxy ( M51) A Seyfert type II galaxy, M51's spiral structure has been enhanced by a most apparent close encounter with its smaller neighbor, NGC 5195. Surprisingly, eight years separates the discoveries of these two galaxies.

Rajat

Rajat

Exoplanets or planets orbiting other stars like are Sun are under intense focus. One of the methods to look for planets orbiting the star is to look for relative dip in intensity of light from the star which will dip as the planet passes in front of it. The Kepler space telescope has been most used to investigate exoplanets in the search for habitable planets and life in the universe. In this particular example I look at the star WASP43 which has been found to have a Jupiter like planet known as "hot" Jupiter ( with a 1.8 times mass) because it orbits very close to the star with an orbital period of only 0.81 days. This data was collected over a 12 hour period yielding a distinct V shape corresponding to the transit of the hot Jupiter like planet transiting in front of WASP 43. The shaded portion represents the predicted transit period, the red dots are the reference points and the black dots represented the data captured by me. WASP 43 is 80 parsecs or about 260 light years away from the Earth.

Rajat

Rajat

The night, it is deserted
from the mountains to the sea.
But I, the one who rocks you,
I am not alone!
The sky, it is deserted
for the moon falls to the sea.
But I, the one who holds you,
I am not alone !
The world, it is deserted.
All flesh is sad you see.
But I, the one who hugs you,
I am not alone!
Gabriela Mistral

NGC 3324 has been named after the Chilean Nobel laureate whose profile it resembles. NGC 3324 is 7500 light years away located in the Carina constellation. This rich nebular cloud resulted in intense formation stars, of which some very hot blue stars are clearly visible in the image.

Rajat

Rajat

The Known Universe by AMNH
YouTube l https://www.youtube.com/

To remind ourselves of our place in the scheme of things.

Anju Sharma

Anju Sharma

In NASA Study, Twin Astronauts Show Stresses of Space Travel

Preliminary results are in from NASA's unprecedented twin study - a detailed probe of the genetic differences between astronaut Scott Kelly, who spent nearly a consecutive year in space, and his identical twin Mark. Measurements taken before, during and after Scott Kelly's mission reveal changes in gene expression, DNA methylation and other biological markers that are likely attributable to his time in orbit.

Very interesting way to study the effect of space travel on human genes... Use twins!

Adam Pryor

Adam Pryor

ESO Ultra HD Timelapse Compilation
YouTube l https://www.youtube.com/

European Southern Observatory in Chile is at the forefront of astronomical research. This is a beautiful time lapse collection.

Rajat

Rajat

Caltech Researchers Find Evidence of a Real Ninth Planet | Caltech

Caltech researchers have found evidence of a giant planet tracing a bizarre, highly elongated orbit in the outer solar system. The object, which the researchers have nicknamed Planet Nine, has a mass about 10 times that of Earth and orbits about 20 times farther from the sun on average than does Neptune (which orbits the sun at an average distance of 2.8 billion miles).

According to researchers at Caltech "Planet Nine gravitationally dominates its neighborhood of the solar system. In fact, it dominates a region larger than any of the other known planets—a fact that Brown says makes it "the most planet-y of the planets in the whole solar system."
"Where did Planet Nine come from and how did it end up in the outer solar system? Scientists have long believed that the early solar system began with four planetary cores that went on to grab all of the gas around them, forming the four gas planets—Jupiter, Saturn, Uranus, and Neptune. Over time, collisions and ejections shaped them and moved them out to their present locations. "
"And indeed Planet Nine's existence helps explain more than just the alignment of the distant Kuiper Belt objects. It also provides an explanation for the mysterious orbits that two of them trace."

Adam Pryor

Adam Pryor

Study Suggests That Dark Energy Is The Reason Time Moves Forward

Ever since Lemaitre and Hubble's first proposed it in the 1920s, scientists and astronomers have been aware that the universe is expanding. And from these observations, cosmological theories like the Big Bang Theory and the "arrow of time" emerged.

"Why does time flow forwards, but not backwards? According to new study produced by a research team from the Yerevan Institute of Physics and Yerevan State University in Armenia, the influence of dark energy may be the reason for the forward-flow of time, which may make one-directional time a permanent feature of our universe....The question of why this is the case though, is one that has continued to frustrate physicists. Certain fundamental forces, like gravity, are not governed by time. In fact, one could argue without difficulty that Newton’s laws of motion and quantum mechanics work the same forwards or backwards. But when it comes to things on the grand scale like the behavior of planets, stars, and entire galaxies, everything seems to come down to the second law of thermodynamics.This law, which states that the total chaos (aka. entropy) of an isolated system always increases over time, the direction in which time moves is crucial and non-negotiable, has come to be accepted as the basis for the arrow of time. In the past, some have ventured that if the universe began to contract, time itself would begin to flow backwards. However, since the 1990s and the observation that the universe has been expanding at an accelerating rate, scientists have come to doubt that this....."

Source 3tags.org

Rajat

Rajat

Carl Sagan - You Are Here (Pale Blue Dot) [Sagan Time]
YouTube l https://www.youtube.com/

In the words of Dr. GC Pande "The earth reveals the bounded forms of space in which we find location and orientation. The sky is the unbounded matrix and container of the earth, at once a cosmic principle and a most appropriate symbol of Brahman." Yet in the 21st century we still fight the eternal wars of religion, rulers and race. Carl Sagan so truly tried to show us our place. Are we ready to listen ?

Steve Ashokaan

Steve Ashokaan

Culture's Ways - Dancing with aurora borealis | Video of Earth from Space
YouTube l https://www.youtube.com/

Whenever you feel like your problems are too big to handle... watch this video and dance with the stars. Everything is relative.

Adam Pryor

Adam Pryor

Magnifying the Universe

Embed this infographic on your site! The above is an interactive infographic. We have also developed a complimentary poster that you can view here: Sizes of the Universe poster. If you're technically inclined, here's a look at the references we used to construct these infographics: Facts About The Universe.

"While other sites have tried to magnify the universe, no one else has done so with real photographs and 3D renderings. To fully capture the awe of the vastly different sizes of the Pillars of Creation, Andromeda, the sun, elephants and HIV, you really need to see images, not just illustrations of these items. Stunningly enough, the Cat's Eye Nebula is surprising similar to coated vesicles, showing that even though the nebula is more than 40,000,000,000,000,000,000,000 times larger, many things are similar in our universe." source numberslueth.org

Elizabeth Kimball

Elizabeth Kimball

If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system

Titan That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We'll be coming up on a new planet soon. Sit tight. Most of space is just space. Sit back and relax.

What a huge place our solar system is! This puts it in a wonderful perspective!

Rajat

Rajat seriously.got tired scrolling left

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Emma Zahren-Newman

Emma Zahren-Newman so worth it though! I like how you can change the units to things like miles or blue whales

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Brody Lee

Brody Lee

Mostly Mute Monday: See Inside The Swirling Storms Of Saturn - Starts With A Bang!

Like all the planets with atmospheres, Saturn contains its own weather, complete with storms both large and small. While the Cassini mission was able to discover a number of interesting ones on the ringed-world, such as the long-lived polar hexagon and the Southern hemisphere's Dragon Storm, the most spectacular occurred in 2011, emerging in the northern hemisphere, encircling the entire planet, lapping itself and lasting over 200 days.

“It is marvelous indeed to watch on television the rings of Saturn close; and to speculate on what we may yet find at galaxy’s edge. But in the process, we have lost the human element; not to mention the high hope of those quaint days when flight would create ‘one world.’ Instead of one world, we have ‘star wars,’ and a future in which dumb dented human toys will drift mindlessly about the cosmos long after our small planet’s dead.” -Gore Vidal

Kiplani

Kiplani

Direct From Pluto: First Encounter | Discovery Science Documentary - 2015
YouTube l https://www.youtube.com/

NASA on Pluto Flyby....these are great images.

Steve Ashokaan

Steve Ashokaan

A Blue Moon Probably Isn't What You Think It Is

Despite the popular expression, a blue moon isn't as astoundingly rare as one might expect. It also isn't blue. Friday night's moon is being called a blue moon because it is the second full moon occurring in one month - the first was on July 2.

Tonight is a Blue Moon! That only happens... once in a blue moon! Turns out, it isn't even blue. (or made of cheese, if you were wondering). Did anyone see it? I caught a glimpse as it was rising! Cool fact: "A truly blue-colored moon, which isn't actually called a blue moon, actually is a rarity and is usually the product of a volcano or wildfire sending particles into the air. The particles only allow blue light to filter through, according to NASA."