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Astronomy
Past Tense of 'Appear': Correcting Verb Tense in Sentences
The past tense of "some stars appear to be brighter than others" is:
Some stars appeared to be brighter than others.
Star Color Abundance: Understanding Stellar Formation & Evolution
Orbital Eccentricity: Comparing Planets and Moons
Astronomy
Introducing Perseverance: NASA’s Advanced Mars Rover
Historic Marker Installed at John Glenn’s Ohio Birthplace
Betelgeuse Spins Faster Than Predicted, Possibly Devoured a Companion 100,000 Years Ago
Science Discoveries
Heron Survey Reveals Intricate Structures in the Faint Outskirts of a Ghostly Dwarf Elliptical Galaxy
Unveiling Root Dynamics: Tree Growth and Decline in Future CO₂ Atmospheres
Engineering Minimal-Interface Structures within Ultra‑Fine‑Grained Polycrystalline Copper
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Astronomy
Japan's Space Debris Removal Mission Fails, Raising Concerns
Chinese Astronomers Detect Gamma-Ray Signals in Two Star-Forming Galaxies, Advancing High-Energy Astrophysics
Astrophysicists Confirm 2004 Theory: Sun’s Composition Varies, Explained
ESA’s Mars Express Solves Phobos Solar‑Wind Mystery with Real & Simulated Flybys
ISS Russian Module Oxygen Failure, Crew Safe
NASA Shares First Audio from Mars and Footage of Perseverance Rover's Historic Landing
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