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Astronomy News 7 June 2025 - 19 June 2025

Skywatch Alert: 50+ Must-See Cosmic Events from July 2025 to June 2026 (Eclipses, Meteor Storms & Rare Planetary Shows!)

Skywatch Alert: 50+ Must-See Cosmic Events from July 2025 to June 2026 (Eclipses, Meteor Storms & Rare Planetary Shows!)

Perseids peak on August 12–13, 2025 with 50–100 meteors per hour in the Northern Hemisphere, best after midnight as the Moon wanes. Geminids peak on December 13–14, 2025 with 100+ meteors per hour and the first-quarter Moon sets early. Quadrantids peak on January 3–4, 2026 with about 120 meteors per hour over roughly a four-hour window, aided by new Moon darkness. Total lunar eclipse on September 7–8, 2025, the long-haul Blood Moon, fully visible across Europe, Africa, Asia and Australia/New Zealand with totality about 1 hour 22 minutes. Saturn at opposition on September 21, 2025; rings are edge-on for a
19 June 2025
Eyes on the Infinite: The Next Generation of Space Telescopes Set to Rewrite the Cosmos

Eyes on the Infinite: The Next Generation of Space Telescopes Set to Rewrite the Cosmos

The Nancy Grace Roman Space Telescope is planned to launch in late 2026 (latest commitment by May 2027) aboard SpaceX’s Falcon Heavy to a halo orbit around the Sun-Earth L2, about 1.5 million kilometers from Earth. Roman uses a 2.4-meter primary mirror repurposed from Hubble and a 300-megapixel Wide Field Instrument that covers about 0.28 square degrees, enabling sky surveys roughly 1,000 times faster than Hubble. Its Coronagraph Instrument aims to directly image exoplanets and disks by suppressing starlight with deformable mirrors, potentially detecting planets a billion times fainter than their stars. Roman’s microlensing survey is expected to find over
8 June 2025
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Cosmic Time Machine: The Jaw-Dropping Science Unleashed by the James Webb Space Telescope

Cosmic Time Machine: The Jaw-Dropping Science Unleashed by the James Webb Space Telescope

JWST launched on December 25, 2021, aboard an ESA Ariane 5 rocket to the Sun-Earth L2 point, reaching about 1.5 million kilometers from Earth in January 2022. Its 6.5-meter segmented gold-coated beryllium primary mirror consists of 18 hexagonal segments, each about 1.32 meters across and roughly 20 kilograms, designed to fold for launch. JWST uses a five-layer Kapton sunshield measuring roughly 21 by 14 meters to keep the optics around 40 kelvin, while the MIRI instrument operates at about 7 kelvin with a dedicated cryocooler. JWST carries four main instruments: NIRCam (0.6-5 μm; 4-megapixel arrays and wavefront sensing), NIRSpec (0.6-5
7 June 2025
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