Bakra Mandi Karachi

10/06/2025

🌕 A full Moon to remember! Mark your calendars sky gazers 🌌

10/06/2025

The image shows a Golden-collared Manakin (Manacus vitellinus).

10/06/2025

🌌 Our Solar System Was Born from a Doughnut, Not a Dartboard ☄️🥯

New research on ancient meteorites suggests our solar system’s birth disk wasn't made of concentric rings like a dartboard — it was more like a doughnut. That’s the surprising conclusion from a study analyzing iron meteorites, which are remnants of the metallic cores of the earliest asteroids.

These meteorites contain refractory metals like iridium and platinum — elements that form only under extreme heat, near the Sun. But oddly, they’re found in meteorites that originated far from the Sun, in the cold outer reaches of the solar system.

This shouldn’t be possible if the early solar system looked like the familiar ringed structures we observe around other stars — because those rings have physical gaps that prevent material from traveling outward. Instead, scientists from UCLA and Johns Hopkins propose a new model: a doughnut-shaped disk, smooth and continuous, allowed hot inner material to migrate outward during the disk’s rapid expansion.

Here’s where it gets even more interesting: Jupiter played a pivotal role. As the gas giant formed, it carved a gap in the disk, trapping the migrating iridium and platinum in the outer regions. These metals later became part of the first-generation asteroids, whose fragments now fall to Earth as iron meteorites — time capsules from the solar system's infancy.

10/06/2025

23.9.2025 00:03

📷 Sony A7S III, 20 mm, f/1.4, 0.6 s, ISO 12800

10/06/2025

Dang, look at that bird! 😍 It's got some wild colors - bright blue body, black accents, and those red feet are poppin'. The green background makes it look like it's chillin' in a jungle or somethin'.

10/06/2025

Tomorrow's full Moon will be special. Here's why 👇🏻

This isn’t just a full Moon—it’s a super one. That means the Moon is both full and at its closest point to Earth, making it appear up to 14% larger and 30% brighter than usual.

🌾 But wait—there’s more. It’s also a Harvest Moon, the full Moon nearest to the autumn equinox. Traditionally, this gave farmers extra light during harvest season.

📅 And here’s the twist:
Most Harvest Moons happen in September, but this one’s rising in October—something that’s only happened 18 times between 1970 and 2050.

🕯️ The last October Harvest Moon was in 2020. The next? Not until 2028.

The full phase officially occurs at 03:48 GMT on October 7. No matter where you are, try to catch the Moon low on the horizon just after sunset — that’s when it looks its most dramatic.

Happy moongazing! 🌕

10/04/2025

10/04/2025

OMG look at that tiny bird 🐦! It's so cuuuute perched on that branch 💖. The mix of brown, green, and those little touches of green on its face tho 🤩

10/04/2025

Belted Kingfisher.

The belted kingfisher (Megaceryle alcyon) is a large, conspicuous water kingfisher, native to North America.

This species has a large head with a shaggy crest. Its long, heavy bill is black with a grey base. These features are common in many kingfisher species. This kingfisher shows reverse sexual dimorphism, with the female more brightly coloured than the male. Both sexes have a slate blue head, large white collar, a large blue band on the breast, and white underparts. The back and wings are slate blue with black feather tips with little white dots. The female features a rufous band across the upper belly that extends down the flanks. Juveniles of this species are similar to adults, but both sexes feature the rufous band on the upper belly. Juvenile males will have a rufous band that is somewhat mottled while the band on juvenile females will be much thinner than that of adult females.

The belted kingfisher's breeding habitat is near inland bodies of waters or coasts across most of North America, within Canada, Alaska and the United States.

10/04/2025

🚨 Cosmic Event Alert! 🌕✨ The Moon meets Saturn on October 5–6 🪐

Look up after sunset to witness this stunning celestial pairing as the Moon passes close to Saturn in the night sky.

🔭 Visible from both hemispheres!
In the Northern Hemisphere, look southeast
In the Southern Hemisphere, look northeast

Don’t miss this beautiful rendezvous 🌌💫

10/04/2025

Oxygen has been discovered at the edge of time! 🌌

Astronomers are once again being forced to rethink the timeline of the early universe, thanks to a groundbreaking discovery by the James Webb Space Telescope (JWST).

A distant galaxy, named JADES-GS-z14-0, has been found to contain an unexpectedly high concentration of oxygen, despite forming just 300 million years after the Big Bang. This finding challenges long-held beliefs about when and how heavy elements first appeared in the cosmos.

In the earliest stages of the universe, shortly after the Big Bang, only hydrogen and helium existed. Heavier elements like oxygen are created inside stars through nuclear fusion and are spread into the surrounding space when those stars explode as supernovae. The presence of oxygen in JADES-GS-z14-0 means that multiple generations of stars must have formed, lived, and died extremely quickly—a process previously thought to take much longer.

The amount of oxygen detected in this galaxy is especially astonishing: it contains ten times more heavy elements than models predict for galaxies of this age. This suggests that JADES-GS-z14-0 didn’t just appear early—it evolved rapidly, reaching a level of maturity that defies current cosmological theories. Not only is it rich in heavy elements, but it's also surprisingly large and bright, further complicating efforts to explain how it formed so quickly in the young universe.

This discovery has serious implications. It suggests that the early universe was far more active and complex than previously believed. If galaxies like JADES-GS-z14-0 were forming and evolving this quickly, our current models of galaxy formation and cosmic evolution may be missing key processes or underestimating the speed at which they occur.

Astronomers now face new and pressing questions: How did so much oxygen form so early? How many other ancient galaxies are hiding similar secrets? And what does this mean for our understanding of the universe’s first billion years?

📄 RESEARCH PAPERS

📌Sander Schouws et al., "Detection of [OIII]88μm in JADES-GS-z14-0 at z=14.1793", arxiv (2025)

📌Stefano Carniani et al., "The eventful life of a luminous galaxy at z = 14: metal enrichment, feedback, and low gas fraction?", arxiv (2025)

05/28/2025

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