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Space
Atmosphere of lava planet: ‘A cloudy, reflective sunscreen’
New observations of super-Earth TOI-561 b by the Webb telescope show again that the atmosphere of lava planet TOI-561 b does exist, and is very reflective.
November 10, 2026
Sun
Sun news: On this date but 2025, a powerful X-class flare
Sun news November 11, 2026: On a day like today, November 11 but in 202, our sun blasted out a powerful X5.1 flare. Today is first anniversary of the powerhouse event.
Astronomy Essentials
Tonight
Visible planets and night sky guide for November
Visible planets and night sky guide: Look for bright Jupiter and red Mars! They are getting closer each day and will appear closest together on November 15–17.
November 10, 2026
Tonight
See the Summer Triangle in the northern autumn sky
Look west in the evening to see the Summer Triangle in autumn. Its 3 bright stars - Vega, Deneb and Altair - are in 3 different constellations.
November 10, 2026
Earth
The enormous oarfish could inspire new ways to explore the ocean
The giant oarfish has a remarkable fin that could inspire quieter underwater robots and open new possibilities for ocean exploration and conservation.
November 9, 2026
Human World
Space
Carl Sagan born 92 years ago today
Carl Sagan was born on November 9, 1934. He contributed to science and helped millions around the globe see why astronomy matters.
November 9, 2026
Space
Backward world? Rubin finds a retrograde object past Neptune
The Rubin Observatory in Chile has discovered a retrograde object in our solar system. It circles the sun in a highly inclined orbit beyond Neptune.
November 8, 2026
Moon Phases
Do we all see the same moon phase from Earth?
No matter where you are on Earth, we all see the same moon phase. So why can the moon look tilted, or even upside down, depending on where you are?
November 8, 2026
Space
Active volcanoes on Mars? Noxious gas discovery says — maybe
Are there still active volcanoes on Mars? New detections of hydrogen chloride from below the surface suggest flowing magma.
November 6, 2026
Earth
Traces of dinosaur blood found for the 1st time?
For the 1st time, scientists say they've found traces of dinosaur blood. It comes from a 115-million-year-old fossil dinosaur bone from Brazil.
November 6, 2026
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