Study reveals how large trees transport water to their highest branches, challenging previous assumptions about their water movement capabilities.
Giant Trees Have No Trouble Pumping Water To Top Branches: New Research
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Imaging Basics
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E Pluribus Algae: Why Green Pond Scum Is as American as Red, White and Blue
Exploring how green pond algae, often dismissed as scum, reflects American values and ecological history, highlighting its cultural importance and ongoing research.
Europe’s deadly heat wave seen from space | Space photo of the day for June 30, 2026
A space photo taken on June 30, 2026, shows Europe’s intense heat wave, highlighting the severity of climate change impacts on the continent.
Sun Releases Strong Flare
NASA detected a powerful X1.1 solar flare peaking at 4:50 p.m. ET on June 30, with potential impacts on communications and power systems on Earth.
Tonight’s Sky Story: Sibling Supernova Remnants (NASA APOD, 2026-07-02)
Discover how twin supernova remnants reveal the explosive history of stars. Learn what makes these cosmic siblings so fascinating tonight.
Scan More than 60 Million Stars in the Most Detailed Photo of the Milky Way Ever Taken
The Euclid mission has produced the most detailed photo of the Milky Way’s center, capturing over 60 million stars and revealing new insights into our galaxy.
Tonight’s Sky Story: Unusually Smooth Sections of Asteroid Itokawa (NASA APOD, 2026-06-30)
Discover why parts of asteroid Itokawa appear unusually smooth. Learn how surface processes shape small bodies and what they reveal about our solar system.
Tonight’s Sky Story: M82: Galaxy with a Supergalactic Wind (NASA APOD, 2026-06-29)
Discover what makes M82, the Cigar Galaxy, extraordinary — from its starburst activity to its powerful supergalactic wind. A fascinating cosmic story.
Tonight’s Sky Story: SDO Observes a Coronal Mass Ejection (NASA APOD, 2026-06-24)
Discover how NASA’s SDO captured a massive solar eruption—what it means for Earth and how scientists track these fiery space storms in real time.
Scientists Propose Black Holes Don’t Exist, Are Something Much Stranger
Researchers propose black holes may not exist, suggesting a different, stranger explanation for cosmic phenomena. The claim challenges decades of astrophysics.
