Summary：We need to write a professional original news article, 300-500 words, SEO optimized, human-like, no

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We need to write a professional original news article, 300-500 words, SEO optimized, human-like, no AI style, clear structure, with analysis, unique wording. Title and summary given. Must follow structure: Introduction, Key Developments, Industry Analysis, Future Outlook, Conclusion. Return only the SEO-optimized content. No extra commentary.

We need to embed keywords for SEO: "Mars map", "Moon map", "Venus map", "ocean floor mapping", "seabed mapping", "global maps", "planetary cartography", "ocean exploration", "seafloor mapping technology", etc.

Word count 300-500. Let's aim ~380 words.

We need to avoid AI style: use varied sentence lengths, some colloquial but professional. Avoid typical AI phrasing like "In conclusion", maybe okay but we can vary.

We need to ensure not to mention we are AI. Provide article only.

Let's craft.

Check word count manually.

I'll write ~380 words.

Let's draft:

Title line? Probably include title as heading? The instruction: Title: ... Summary: ... They likely want the article to start with title and summary? Usually news article includes title and maybe a lead summary. We'll output title line then summary then sections.

We'll produce:

Title: Astonishingly, we've mapped Mars, Moon, Venus better than Earth's hidden ocean floor

Summary: The best global maps of Mars, the Moon and Venus resolve finer detail than the best global map of our own seabed. A look at why, and how fast the gap is closing.

Then sections with headings: Introduction, Key Developments, Industry Analysis, Future Outlook, Conclusion.

Now write content.

Let's draft ~380 words.

Count words manually approximate.

I'll write then count.

Text:

"Astonishingly, we've mapped Mars, Moon, Venus better than Earth's hidden ocean floor"

"The best global maps of Mars, the Moon and Venus resolve finer detail than the best global map of our own seabed. A look at why, and how fast the gap is closing."

Introduction:
For decades scientists have turned their eyes outward, producing high‑resolution charts of neighboring worlds while the planet’s own depths remained shrouded in mystery. Satellite altimetry and radar soundings have given Mars a global topography with pixels as small as 100 meters, the Moon’s laser‑altimeter maps reach 50‑meter resolution, and Venus’s radar mosaics reveal features down to 75 meters. In contrast, the most comprehensive seafloor chart—the General Bathymetric Chart of the Oceans (GEBCO) 2023 grid—still averages about 5 kilometers per cell, leaving vast trenches, ridges and volcanic fields barely outlined.

Key Developments:
Recent advances are narrowing that disparity. Multibeam sonar arrays mounted on autonomous underwater vehicles (AUVs) now collect swaths of data at 10‑meter spacing over thousands of square kilometers each mission. The Nippon Foundation‑GEBCO Seabed 2030 project has coordinated over 150 research vessels, pushing the mapped area from roughly 15 % of the ocean floor in 2017 to more than 23 % today. Simultaneously, satellite