
| Picture of the day |
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A beach chair on the beach of Juliusruh is illuminated by the rising morning sun.
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| Picture of the day |
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A beach chair on the beach of Juliusruh is illuminated by the rising morning sun.
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A SpaceX Falcon 9 rocket carrying NASA’s IMAP (Interstellar Mapping and Acceleration Probe), the agency’s Carruthers Geocorona Observatory, and National Oceanic and Atmospheric Administration’s (NOAA) Space Weather Follow On–Lagrange 1 (SWFO-L1) spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida at 7:30 a.m. EDT Wednesday, Sept. 24, 2025. The missions will each focus on different effects of the solar wind — the continuous stream of particles emitted by the Sun — and space weather — the changing conditions in space driven by the Sun — from their origins at the Sun to their farthest reaches billions of miles away at the edge of our solar system.
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The Sun blew out a coronal mass ejection along with part of a solar filament over a three-hour period on Feb. 24, 2015. While some of the strands fell back into the Sun, a substantial part raced into space in a bright cloud of particles (as observed by the NASA-ESA Solar and Heliospheric Observatory spacecraft). Because this occurred way over near the edge of the Sun, it was unlikely to have any effect on Earth.
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On May 19th, 2005, NASA’s Mars Exploration Rover Spirit captured this stunning view as the Sun sank below the rim of Gusev crater on Mars. This panoramic camera mosaic was taken around 6:07 in the evening of the rover’s 489th Martian day, or sol.
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Webb has found crystalline water ice in a debris disk around a young, Sun-like star called HD 181327. Based on its presence in our own solar system, scientists have expected to see it in other star systems — but haven’t had sensitive enough instruments to provide definitive proof until now.
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The sun’s glint beams off a partly cloudy Atlantic Ocean just after sunrise as the International Space Station orbited 263 miles above on March 5, 2025.
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In about 5 billion years, our Sun will run out of fuel and expand, possibly engulfing Earth. These end stages of a star’s life can be utterly beautiful – as is the case with this planetary nebula called the Helix Nebula. Astronomers study these objects by looking at all kinds of light. This images show X-rays from NASA’s Chandra X-ray Observatory (magenta), optical light data from NASA’s Hubble Space Telescope (orange, light blue), infrared data from the European Southern Observatory VISTA telescope (gold, dark blue), and ultraviolet data from GALEX (purple) of the Helix Nebula.
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A SpaceX Falcon 9 rocket with the company’s Dragon spacecraft on top is seen during sunrise on the launch pad at Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Tuesday, March 11, 2025, ahead of the agency’s SpaceX Crew-10 launch. Crew-10 is the 10th crew rotation mission with SpaceX to the International Space Station as part of the agency’s Commercial Crew Program. Liftoff is targeted for 7:48 p.m. EDT on Wednesday, March 12, 2025.
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This NASA/ESA Hubble Space Telescope image features a supernova remnant called the Veil Nebula. This nebula is the remnant of a star roughly 20 times as massive as the Sun that exploded about 10,000 years ago.
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Springtime in the South Polar region of Mars is a season of exciting activity. The thick coating of carbon dioxide ice that accumulated over the winter begins to sublimate (turn to vapor) as the sun rises higher in the sky and warms the ice. Sunlight penetrates through the transparent ice, and is absorbed at the base of the ice layer. The gas that forms as a result of the warming escapes through weaknesses in the ice and erupts in the form of magnificent geysers of gas and dust.
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Released on Nov. 3, 2023, in honor of Jupiter reaching opposition, which occurs when the planet and the Sun are in opposite sides of the sky, this view of the gas giant planet includes the iconic, massive storm called the “Great Red Spot.”
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Here is a new version of the “Christmas tree cluster.” NGC 2264 is a cluster of young stars between one and five million years old. (For comparison, the Sun is a middle-aged star about 5 billion years old – about 1,000 times older.)
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