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Krishnan Crater: IAU Names Mars Crater After M.S. Krishnan

27 November 20251 min read
SCIENCE & TECHNOLOGYKrishnan Crater:IAU Names MarsCrater After M.S.Krishnan27 November 2025safalsetu.com

Why in the news

The IAU accepted a proposal from two Kerala researchers to honour an Indian geology pioneer with a Martian crater, plus Kerala place names.

Key facts

  • Crater: Krishnan Crater, billions of years old.
  • Kerala names: Valiamala, Thumba, Bekal, Varkala, Periyar, for small craters and a vallis (valley).

Notable Mars craters

CraterNote
GaleCuriosity Rover site; ancient water
JezeroPerseverance Rover site; ancient river delta
HuygensLarge, eroded, southern hemisphere
Hellas BasinOne of the largest impact basins
GusevSpirit Rover; past water flows

Exam angle

  • Naming body: International Astronomical Union.

Test yourself

1. After which Indian geologist did the IAU name a Martian crater?

The crater is called Krishnan Crater after M.S. Krishnan.

2. Which Mars crater is the landing site of the Perseverance Rover?

Jezero Crater, with an ancient river delta, is Perseverance's site.

3. Which body approved the naming of Krishnan Crater on Mars?

The IAU approved the proposal from two Kerala researchers.