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Astronomy News 19 August 2025 - 21 August 2025

Star ‘Stripped to the Bone’, Antarctic Sea Ice Alarm, and Brain Aging Reversed – Science News Roundup (Aug 20–21, 2025)

Star ‘Stripped to the Bone’, Antarctic Sea Ice Alarm, and Brain Aging Reversed – Science News Roundup (Aug 20–21, 2025)

Space & Astronomy Climate & Environment Health & Medicine Biology & Ecology Physics & Chemistry Technology & AI Sources: The information above is drawn from peer-reviewed studies, official press releases, and reputable science media reports published on August 20–21, 2025. Key sources include Nature and Science journal releases Scitechdaily Scitechdaily, NASA announcements Nasa Nasa, press releases via ScienceDaily and SciTechDaily…
21 August 2025
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Secret Spaceplane Launch, 75 Mice in Orbit, and Uranus’ New Moon – Space Highlights (Aug 20–21, 2025)

Secret Spaceplane Launch, 75 Mice in Orbit, and Uranus’ New Moon – Space Highlights (Aug 20–21, 2025)

Satellite Launches & Missions 🚀 Global Space Agency Developments 🌍 (Elsewhere in space agency news: NASA this week opened accreditation for a September event to introduce its 2025 astronaut candidate class and to preview the Artemis II Moon mission Nasa Nasa. The new astronaut class, selected from over 8,000 applicants, will be unveiled on Sept. 22, while NASA’s Artemis II crew (set…
21 August 2025
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75 Mice, a Secret Spaceplane & a New Moon: Major Space News Roundup (Aug 19–20, 2025)

75 Mice, a Secret Spaceplane & a New Moon: Major Space News Roundup (Aug 19–20, 2025)

On August 19, CAS Space launched the Lijian-1 (Kinetica-1) Y10 from Jiuquan, deploying seven satellites including ThumbSat-1 and ThumbSat-2 (~100 grams each) built in Mexico. The Lijian-1 is the eighth flight in the Kinetica-1 series and CAS Space says it can loft 50+ satellites per mission with launch costs below $10,000 per kilogram to orbit, including an X-band radar Earth-imaging…
20 August 2025
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Interstellar Comet 3I/ATLAS: A Visitor from Beyond the Solar System

Interstellar Comet 3I/ATLAS: A Visitor from Beyond the Solar System

3I/ATLAS was first spotted on July 1, 2025 by the ATLAS telescope in Río Hurtado, Chile, and officially designated 3I/2025 A1 (ATLAS), the third confirmed interstellar object after 1I/‘Oumuamua (2017) and 2I/Borisov (2019). It is traveling through the inner solar system at about 60–61 kilometers per second relative to the Sun on a hyperbolic trajectory, with perihelion near the orbit…
19 August 2025
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Interstellar Comet, ‘Trojan Horse’ Cancer Cure & AI’s Hidden Carbon Cost – Science Highlights (Aug 18–19, 2025)

Interstellar Comet, ‘Trojan Horse’ Cancer Cure & AI’s Hidden Carbon Cost – Science Highlights (Aug 18–19, 2025)

Space & Astronomy Health & Medicine Biology & Ecology Physics Chemistry Climate Science Technology & AI Environmental Science Sources: The above summaries are based on reporting and press releases from sources including ScienceDaily, SciTechDaily, NASA, Space.com, Nature journals, and other outlets Scitechdaily Scitechdaily Scitechdaily Space Scitechdaily Discovermagazine Sciencedaily Scitechdaily Sciencedaily Sciencedaily Sciencedaily Scitechdaily Sciencedaily Sciencedaily Scitechdaily Scitechdaily Mongabay Mongabay. Each…
19 August 2025
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Space Race Heats Up: Launch Milestones, Satellite ‘Bloom’ & a Lunar Showdown (Aug 18–19, 2025)

Space Race Heats Up: Launch Milestones, Satellite ‘Bloom’ & a Lunar Showdown (Aug 18–19, 2025)

United States: Moon Missions, Mega-Constellations & Scientific Milestones Europe: Weather Satellite Success & Space Safety Initiatives Asia: Ambitious Launches, New Satellites & Spaceflight Firsts Space Security & Policy: The Final Frontier Turns Battleground Sources: NASA News Releases and Blogs Nasa Nasa Nasa; Spaceflight Now Spaceflightnow; Reuters Reuters; Gizmodo Gizmodo Gizmodo; NDTV Ndtv Ndtv; Times of India Indiatimes; United News of…
19 August 2025
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Sky on Fire Tonight: Giant ‘Solar Canyon’ Aims 800‑km/s Wind at Earth—Northern Lights Could Ignite 15 U.S. States & Test Global Tech

Northern Lights Alert: Auroras Could Dance Across 14 States Tonight – When & Where to Watch

On August 19, 2025, NOAA’s Space Weather Prediction Center forecast a minor geomagnetic storm (G1) that could make the Northern Lights visible across 14+ U.S. states. Areas fully or partially within tonight’s aurora visibility zone include Alaska; Washington; Idaho; Montana; North Dakota; South Dakota; Minnesota; Wisconsin; Michigan; Maine; Vermont; New Hampshire; New York; Iowa; and northern Wyoming and Illinois. The…
19 August 2025
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Stock Market Today

  • Alphatec Holdings (ATEC) Shares Dip Below 200-Day Moving Average
    January 27, 2026, 12:07 PM EST. Shares of Alphatec Holdings Inc (ATEC) fell below their 200-day moving average of $14.46 on Wednesday, trading as low as $14.31. The stock declined about 2.6% during the session. Over the past year, ATEC's price has ranged between $8.66 and $19.14, with the current trading price near $14.25. The 200-day moving average, a technical indicator used to identify longer-term trends, often acts as support or resistance for stock prices. Crossing below it could signal bearish momentum for Alphatec Holdings.
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