March 28, 2024 21:44 (IST)
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'To browbeat and bully others is vintage Congress culture': PM posts after 600 lawyers write to CJI | Comments on our electoral, legal processes completely unacceptable: India on US' remarks over Kejriwal arrest | Delhi High Court rejects PIL seeking removal of Arvind Kejriwal as CM | MHA extends AFSPA in 3 districts of Arunachal Pradesh for 6 months | Encourage fair, transparent and legal process: US comments again on Kejriwal's arrest

NASA Rover's sand-dune studies yield surprise

Washington, July 1 (IBNS) Some of the wind-sculpted sand ripples on Mars are a type not seen on Earth, and their relationship to the thin Martian atmosphere today provides new clues about the atmosphere's history.

NASA Rover findings point to a more Earth-like Martian past

Washington, June 27 (IBNS) Chemicals found in Martian rocks by NASA's Curiosity Mars rover suggest the Red Planet once had more oxygen in its atmosphere than it does now.