Science General Knowledge Part 16

Welcome to the sixteenth installment of our Science GK series. This part covers a mixed bag of interesting facts, recent breakthroughs, and classic concepts that are essential for students, quiz enthusiasts, and anyone who loves to stay curious about the world of science.

1. Space Exploration Milestones in 2024

2024 has been a landmark year for space agencies worldwide. Here are the key highlights:

Artemis III NASA successfully landed the first woman and the first person of color on the lunar south pole. The mission demonstrated sustainable lunar surface operations.
Chinas Tianwen3 A samplereturn mission from the asteroid Ryugu delivered over 500g of pristine material, offering clues about the early Solar System.
ESAs JUICE The Jupiter Icy Moons Explorer entered orbit around Ganymede, beginning a twoyear study of the giants magnetic field and subsurface ocean.
SpaceX Starlink The constellation surpassed 4,000 operational satellites, bringing broadband to remote regions of Africa and the Pacific.

2. Climate Change: Recent Findings

According to the latest IPCC assessment report:

Global average temperature has risen by 1.2C above preindustrial levels.
Sealevel rise is now averaging 3.6mm per year, accelerating coastal erosion.
The frequency of Category45 tropical cyclones has increased by 30% in the past two decades.

These trends underscore the urgency of cutting greenhousegas emissions to netzero by 2050.

3. Breakthroughs in Medicine

3.1 mRNA Vaccines Beyond COVID19

Following the success of SARSCoV2 vaccines, researchers have advanced mRNA platforms for:

Influenza a quadrivalent mRNA flu vaccine entered PhaseIII trials.
Cancer personalized neoantigen mRNA therapies showed tumor shrinkage in melanoma patients.

3.2 CRISPR Gene Editing

The first CRISPRbased therapy, CTX001, received regulatory approval in the EU for treating sicklecell disease. It works by editing the betaglobin gene in hematopoietic stem cells, offering a potential cure.

4. Physics: Quantum Computing Milestones

In 2024, quantum processors with over 500 logical qubits became operational in research labs. Key achievements include:

Demonstration of quantum error correction that sustains coherence for more than 200s.
Implementation of a quantumsupremacy task that solved a combinatorial optimisation problem 3 faster than the best classical supercomputer.

While practical applications are still emerging, the progress points to disruptive potential in cryptography, material design, and drug discovery.

5. Biology The Hidden World of Microbiomes

The human gut houses ~10 microorganisms, outnumbering human cells tentoone. Recent research highlights:

Specific gut bacteria can modulate the efficacy of immunotherapy in cancer patients.
Dietary fiber increases shortchain fatty acid production, which protects against inflammatory bowel disease.
Microbial exchange between mother and infant occurs not only during birth but also via breast milk microvesicles.

6. Chemistry: Sustainable Materials

Researchers are developing biodegradable polymers derived from plant oils. One notable example is polyhydroxyalkanoate (PHA), which decomposes in soil within 612 months, offering an ecofriendly alternative to conventional plastics.

7. Important Dates & Trivia

April22 World Earth Day. Theme 2024: Invest in Our Planet.
June8 International Ocean Day. Highlights the importance of marine ecosystems for carbon sequestration.
First ever sciencethemed Olympic event: Spacewalking sprint introduced at the 2024 Summer Games in Paris (a simulated lowgravity treadmill challenge).

Science is not only a body of knowledge but a way of thinking. Carl Sagan

8. Quick Quiz Test Your Knowledge

Which lunar region did ArtemisIII land on?
Answer: South Pole Aitken basin.
What is the primary greenhouse gas responsible for recent warming?
Answer: Carbon dioxide (CO).
Name the mRNA vaccine platform that targets influenza.
Answer: Modernas mRNAFlu2.
How many logical qubits did the 2024 quantum processor achieve?
Answer: Over 500.
What biodegradable polymer is derived from plant oils?
Answer: Polyhydroxyalkanoate (PHA).