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24 Hours Without Sleep Changes Your Saliva in Measurable Ways
SpaceX launches back-to-back Starlink missions from both coasts 19 hours apart (photos)
Sun erupts with 3 colossal solar flares in less than 24 hours, boosting chances for northern lights
Astrophotographer spends 115 hours capturing Horsehead Nebula in striking detail with backyard telescope
Solar flares may show predictable warning signs hours before erupting
A new study says you need 10 hours of exercise a week. Can that really be possible?
Lab fish cycles are hours out of sync with natural ones - EurekAlert!
Intravenous tenecteplase prior to endovascular treatment for ischemic stroke at 4.5 to 24 hours - EurekAlert!
AI-powered lab discovers brighter lead-free nanomaterials in 12 hours - EurekAlert!
New study finds low-dose eye drops successful in managing adult myopia for 24 hours - EurekAlert!
What you eat for lunch could influence your immune system just hours later
Sun unleashes 2 colossal X-flares within 7 hours of each other, knocking out radio signals on Earth
You want your Moon landings in HD? So does NASA—here’s how it’s happening | “You just push this button, and in three hours, you’re counting photons.”
Scientists predict when a day will last 25 hours as 'Earth slows down'
Antibiotic resistance genes found in newborns within hours of birth, study shows - EurekAlert!
OpenAI's GPT-5.4 Pro reportedly solves a longstanding open Erdős math problem in under two hours
SpaceX launches two Starlink satellite groups 19 hours apart
'Project Hail Mary' end credits showcase stunning nebula photos captured over 400 hours by a single astrophotographer — here's the inside story
The newly discovered exoplanet TOI-4552 b has a year that lasts only 8 hours
