DNA:
🧫 Deoxyribonucleic Acid (DNA) is the hereditary material found in nearly all living organisms. It carries the genetic instructions that define how we grow, function, and reproduce. 🧍‍♂️🧍‍♀️

Structure:
🧱 DNA is made of molecules called nucleotides, each consisting of:
• A phosphate group ⚡
• A sugar molecule (deoxyribose) 🍬
• A nitrogenous base (A, T, G, C) 🧩

Double Helix:
🌀 James Watson & Francis Crick discovered the double helix model of DNA in 1953, showing two strands coiled around each other like a spiral staircase 🧬.

Functions:
📖 Storage of genetic information
🧬 Transmission of traits from parents to offspring
⚙️ Guidance for protein synthesis

Interesting Facts:
💡 The human genome contains about 3 billion base pairs!
If stretched out, the DNA in one human cell would be over 2 meters long! 😲

#dna #genetics #molecularbiology #science #life

THE HUMAN BRAIN: 🧠
The human brain is the control center of the body — managing thoughts, emotions, memory, and actions. It’s made up of billions of nerve cells called neurons that communicate using electrical signals. ⚡

MAIN SECTIONS:
• Cerebrum — handles reasoning, memory, and voluntary movement.
• Cerebellum — responsible for coordination and balance.
• Brainstem — controls automatic functions like breathing and heartbeat. 💓

INTERESTING FACTS:
• The brain weighs about 1.4 kg (3 lbs).
• It consumes around 20% of the body’s total energy. ⚡
• It continues to form new connections throughout life — a process called neuroplasticity. 🔁

MEMORY & EMOTIONS:
The hippocampus helps store memories, while the amygdala processes emotions like fear and joy.

CONCLUSION:
The brain is one of the most complex and fascinating organs — proof of how extraordinary human life truly is. ✨

#brain #science #mind #neurons

💥 A Cosmic Double-Bladed Lightsaber! 💫

The James Webb Space Telescope (JWST) has captured an astonishing view of enormous jets of blazing gas erupting from a massive young star — a scene straight out of a galactic saga! These colossal jets, stretching 8 light-years across, resemble a cosmic double-bladed lightsaber, cutting through the interstellar darkness. ⚔️

At the heart of this spectacular sight is a newborn star, already 10 times more massive than our Sun. Despite its youth, it’s unleashing torrents of material at hundreds of thousands of miles per hour. As the star forms, gas falls inward — but magnetic forces channel some of that energy outward along its spin axis, creating these stunning twin jets of seething plasma.

🌟 Why this discovery matters:
Astronomers have long debated how massive stars form.

One theory suggests they grow through a stable disk of gas and dust — and the perfectly opposite alignment (180° apart) of these jets supports that idea.

The competing theory argues for a more chaotic process, which would cause twisting or misaligned jets.

Webb’s crisp infrared vision also shows fine filaments, knots, and bow shocks, where the jet material slams into interstellar gas — like cosmic shockwaves frozen in time.

💫 Did you know?
The tips of the jets tell a story of their own — they were once part of the star’s inner region before being flung into space!
And because this protostar lies twice as far from the galactic center as we are, in a region poor in heavy elements, it gives astronomers a rare chance to study how early-universe stars might have formed under similar conditions.

In essence, Webb just gave us a front-row seat to stellar creation in action, on a scale few have ever witnessed. 🌌

📖 Read more: https://science.nasa.gov/missi....ts-of-our-milky-way/

📸 Image Credit: NASA, ESA, CSA, STScI, Yu Cheng (NAOJ)

#nasa #jwst #webbtelescope #starformation #astronomy #milkyway #cosmicjets #science #spaceexploration #universe

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The One Electron Universe: One Particle to Rule Them All | #science #physics #universe #cosmos #theory #quantum #timetravel #fblifestyle #mindblowing