Universe A-Z

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Wolf-Rayet stars

WR 124

Charles Wolf and Georges Rayet discovered three stars with emission bands in 1867 using a 40cm Foucault telescope at the Paris Observatory. Stars absorb energy at different frequencies but stars that emit gas that include a sequence of helium and nitrogen or another sequence of helium, oxygen and carbon, were something unusual. These stars were then named Wolf-Rayet stars from the astronomers that discovered them.

 

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XDINS (Neutron Stars)

The Magnificent Seven (neutron stars) - Wikipedia

en.wikipedia.org

 

[Dalia]

Yellow dwarf – Ordinary star, like the sun and is at its stable point in its transformation.

Yellow Dwarf Stars

 

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Zero Hour

She packed my bags lasts night, pre-flight
Zero hour: 9:00 a.m.
And I'm gonna be high as a kite by then
I miss the Earth so much, I miss my wife
It's lonely out in space
On such a timeless flight

 

[Dalia]

Aurora

Without a fair background around the sun, you might conclude that the only connection between the sun and our earth is the sunlight. With this, there are also false impressions regarding the auroras, or commonly known as “polar lights”:

 

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Bright

 

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Ceres
Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter and the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. And when Dawn arrived in 2015, Ceres became the first dwarf planet to receive a visit from a spacecraft.

Called an asteroid for many years, Ceres is so much bigger and so different from its rocky neighbors that scientists classified it as a dwarf planet in 2006. Even though Ceres comprises 25 percent of the asteroid belt's t

Ceres

 

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Dust

| EarthSky

In space, dust comes from comets and exploding stars. It can form planetary rings, drive global weather patterns and even form the seeds of new planets.

earthsky.org

 

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Universe Expansion

The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. It is an intrinsic expansion whereby the scale of space itself changes.

Expansion of the universe - Wikipedia

 

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The Final Frontier

 

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GRO J1655-40, is a binary star consisting of an evolved F-type primary star and a massive, unseen companion, which orbit each other once every 2.6 days in the constellation of Scorpius. Gas from the surface of the visible star is accreted onto the dark companion, which appears to be a stellar black hole with several times the mass of the Sun. The optical companion of this low-mass X-ray binary is a subgiant F star.


An artist's impression of GRO J1655-40

GRO J1655-40 - Wikipedia

 

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Hurricane

Space hurricane of whirling plasma spotted above Earth’s North Pole

This large, rotating pattern of plasma roiled the ionosphere — similar to its counterparts closer to the Earth’s surface.

astronomy.com

“Until now, it was uncertain that space plasma hurricanes even existed, so to prove this with such a striking observation is incredible,” said co-author Mike Lockwood of the University of Reading in a press release.

 

[Dalia]

Universe Infinite or not ?

What we know with certainty is that the Big Bang occurred 13.8 billion years ago, meaning that is the age of the universe. However, due to the inflation of the universe, as well as the apparently accelerating expansion of every observable corner of the universe, the most distant light we have been able to detect is from roughly 46 billion light-years

 

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Jupiter

 

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Kryptonite

 

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Lemon Slice Nebula

Lemon Slice Nebula - Wikipedia

 

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Matter

 

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Neptune​

Neptune - Wikipedia.

 

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Oort Cloud

Oort Cloud

The Oort Cloud is believed to be a thick bubble of icy debris that surrounds our solar system.

solarsystem.nasa.gov

 

[Dalia]

PSO J334.2028+01.4075, Supermassive binary black holes .

“Your heart sounds just fine, PSO J334.2028+01.4075”