Vesmír 15 Srpen 2025 - 7 Únor 2026

AST SpaceMobile’s $1 billion deal jolts space stocks before holiday; defense names hold up
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Dohoda AST SpaceMobile za 1 miliardu dolarů otřásla akciemi vesmírných společností před svátky; obranné tituly si drží pozici

AST SpaceMobile shares fell 15.17% Thursday to $82.22 after announcing a $1 billion convertible debt deal, then edged up 0.35% Friday. U.S. defense stocks closed higher Friday as Treasury yields dropped on softer inflation data. U.S. markets will be closed Monday for Presidents Day. Space stocks broadly declined Thursday, with Procure Space ETF and satellite suppliers hit.
15 února, 2026
SpaceX halts Falcon 9 launches after Starlink flight hits second-stage snag
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SpaceX pozastavuje starty Falconu 9 poté, co let Starlinku narazil na problém s druhým stupněm

SpaceX has grounded Falcon 9 flights after a second-stage issue followed Monday’s Starlink launch from California. The company is analyzing data and has not set a date for resuming launches. NASA’s Crew-12 mission to the ISS is now scheduled no earlier than Feb. 11. The Falcon 9’s upper stage suffered an “anomaly” during preparations for deorbit.
4 února, 2026
NASA’s TESS pauses planet hunt to track interstellar comet 3I/ATLAS as a rare alignment hits
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NASA pozastavuje lov planet sondou TESS, aby sledovala mezihvězdnou kometu 3I/ATLAS během vzácného zarovnání

NASA redirected its TESS satellite from exoplanet surveys to observe interstellar comet 3I/ATLAS from January 15–22. All data will be released immediately without proprietary period. The timing coincides with the comet’s near-opposition alignment, which may enhance dust measurements. NASA confirms 3I/ATLAS poses no threat to Earth.
23 ledna, 2026
Comet 3I/ATLAS Today (15 November 2025): ESA Path Update, Tail Revival, Radio Signals and Alien Claims Explained
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Kometa 3I/ATLAS dnes (15. listopadu 2025): aktualizace trasy ESA, oživení ohonu, rádiové signály a vysvětlení tvrzení o mimozemšťanech

New images and refined trajectory data released November 15 show interstellar comet 3I/ATLAS survived its close pass behind the Sun intact. The European Space Agency improved its predicted path using data from the ExoMars Trace Gas Orbiter. Astronomer Avi Loeb repeated claims the comet could be artificial, but most experts attribute its behavior to natural causes.
15 listopadu, 2025
Cosmic Gold Rush
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Kosmická zlatá horečka: Uvnitř závodu roku 2025 o těžbu bohatství z asteroidů

NASA’s OSIRIS-REx returned 121.6 grams of asteroid Bennu material to Earth in 2023, the largest asteroid sample to date. China launched Tianwen-2 in May 2025 to collect samples from asteroid Kamoʻoalewa. NASA’s Psyche mission, launched in 2023, aims to reach the metal-rich asteroid 16 Psyche by 2026. AstroForge received the first FCC deep space license in 2024 for its Odin mission, set to launch in January 2025.
8 listopadu, 2025
Your Smartphone Can Now Text via SpaceX’s Starlink Satellites – Here’s Everything You Need to Know
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Váš chytrý telefon nyní může posílat zprávy přes satelity Starlink od SpaceX – vše, co potřebujete vědět

SpaceX’s Starlink now lets standard 4G LTE phones send text messages via satellite in initial launch regions, requiring no extra hardware. T-Mobile, Rogers, Telstra and others plan to offer satellite texting, including 911 support, in 2025. Data and voice services are expected later as the network expands. Competitors AST SpaceMobile and Lynk Global are also testing direct satellite-to-phone connections.
3 září, 2025
How Reusable Rockets Are Revolutionizing Space Travel
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Start, přistaň, opakuj: Jak znovupoužitelné rakety revolucionalizují cestování do vesmíru

SpaceX achieved the first orbital rocket stage landing with Falcon 9 in December 2015 and re-flew a booster in March 2017. By 2023, SpaceX had completed over 170 landings, with some boosters flying 15–16 times. Starship completed its first orbital flight and ocean landing on June 6, 2024. Blue Origin resumed New Shepard passenger flights in December 2023 after engine upgrades.
29 srpna, 2025
Satellites Powered by Water
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Satelity poháněné vodou? Revoluční pohonná látka měnící kosmické lety

V roce 2024 vodní pohon tvoří základ většiny satelitních konstelací, včetně Hawkeye 360, Capella a BlackSky Gen-2. Momentus Vigoride-5 provedl v lednu 2023 třicet pět zážehů a zvýšil dráhu o tři kilometry. NASA PTD-1 v roce 2021 demonstroval spalování H₂/O₂ z elektrolyticky rozdělené vody. ArianeGroup plánuje demonstrační let ESMS do podzimu 2026.
16 srpna, 2025