Pethias

Pethias Explore the universe through stunning astrophotography, fascinating science facts, and the latest cosmic discoveries. Join us on a journey through space.
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08/16/2026

Bananas are radioactive (but harmless).

An F-18 Super Hornet breaking the sound barrier.
08/15/2026

An F-18 Super Hornet breaking the sound barrier.

Star-spangled 🎆Webb’s new red, white, and blue image features a star-to-be: a protostar. Only about 100,000 years old, t...
08/15/2026

Star-spangled 🎆

Webb’s new red, white, and blue image features a star-to-be: a protostar. Only about 100,000 years old, this relatively young object is hidden in the “neck” of the hourglass-shaped cloud of gas and dust.

Captured with Webb’s Mid-Infrared Instrument, blue represents carbon-rich molecules, and red highlights the protostar and the planet-forming disk around it. The white areas show a mixture of hydrocarbons, ionized neon, and thick dust.

As the protostar grows older, it will continue to consume, destroy, and push away much of the cloud. Eventually, once it finishes gathering mass, the star will become much easier to see.

Image Courtesy of NASA, ESA, CSA, STScI

Diamonds of the season 💎These glittering “gems,” or glowing orange dots, are actually four images of the same thing an e...
08/15/2026

Diamonds of the season 💎

These glittering “gems,” or glowing orange dots, are actually four images of the same thing an extremely bright galactic core known as a quasar. The quasar appears like an arc with four bright spots because of an intriguing effect called gravitational lensing.

The gravity of a massive foreground object, in this case a galaxy, is so powerful that it has warped time and space around it. Light followed that bend and took various paths, magnifying and creating multiple copies of the quasar behind the galaxy.

Gravitational lensing is a great way for scientists to study very distant objects that might be too faint or far. Combining this natural “magnifying glass” with Webb’s mid-infrared capabilities, scientists can learn more about the quasar's central black hole. Webb's observations will also probe the nature of dark matter, an invisible form of matter that accounts for most of the universe's mass.

Image Courtesy of ESA/Webb, NASA & CSA, A. Nierenberg

DOUBLE STRIKE Eastern Slovakia and Ukraine witnessed dramatic stormy weather with two types of lightning captured from T...
08/15/2026

DOUBLE STRIKE Eastern Slovakia and Ukraine witnessed dramatic stormy weather with two types of lightning captured from Terňa city. On the right, a Cumulonimbus cloud over Veľký Slivník unleashed one of its early cloud-to-ground strikes, visible from about 70 km away. On the left, a rare Red Sprite emerged from a distant thunderstorm over Brezhany, Ukraine, around 270 km away. The red color of the sprites results from nitrogen emissions 50-95 km high in the atmosphere.

Captured by Petr Horálek Photography.

Mammatus in Kolkata!Photo courtesy of Anushtup Roy Choudhury
08/15/2026

Mammatus in Kolkata!

Photo courtesy of Anushtup Roy Choudhury

Comet of the NorthBoth comet and galaxy were visible to the eye over a snowy field near Tänndalen, Sweden. Photo courtes...
08/14/2026

Comet of the North

Both comet and galaxy were visible to the eye over a snowy field near Tänndalen, Sweden.

Photo courtesy of P-m Hedén (Clear Skies, TWAN)

Hand Of God Nebula👌🏾This phenomenon, dubbed the 'Hand of God' is known as a pulsar wind nebula. It is powered by the rem...
08/14/2026

Hand Of God Nebula
👌🏾

This phenomenon, dubbed the 'Hand of God' is known as a pulsar wind nebula. It is powered by the remnant, dense core of a star that exploded in a supernova explosion. ... The pulsar, known as PSR B1509-58, is about 19 kilometers (12 miles) in diameter and it's spinning around almost 7 times per second!”

Hubble Views the Dawn of a Sun-like StarThis NASA Hubble Space Telescope image captures a triple-star star system.Image ...
08/14/2026

Hubble Views the Dawn of a Sun-like Star

This NASA Hubble Space Telescope image captures a triple-star star system.

Image courtesy of NASA, ESA, G. Duchene (Universite de Grenoble I); Image Processing: Gladys Kober (NASA/Catholic University of America)

SH2-308 Dolphin Head Nebula in HOO 🐬Image courtesy of Capturing Ancient Photons
08/14/2026

SH2-308 Dolphin Head Nebula in HOO 🐬

Image courtesy of Capturing Ancient Photons

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