Daily News update on – Science

October 31, 2022


‘Planet killer’ near-Earth asteroid spotted, the largest in 8 years

Astronomers have spotted three near-Earth asteroids that were lurking undetected within the glare of the sun. One of the asteroids is the largest potentially hazardous object to Earth to be discovered in the last eight years.

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The Perseverance rover is collecting rock samples from Mars to bring back to Earth

Concept illustration for research robots that could bring samples of Mars rocks to Earth-based labs. Credit: NASA/JPL-Caltech. Hidden in the minerals and textures that make up rocks are clues about how and when they formed and were later altered.

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The Washington Post

The sun was ‘smiling’ in a NASA photo. It might be a warning for Earth.

It turns out that anyone who drew a smiley-faced sun as a kid has been scientifically proved — somewhat — right. Last week, NASA’s Solar Dynamics Observatory captured an image of the biggest object in our solar system looking like the Stay Puft …

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Astronaut candidates’ fly-shaped class patch is a lunar ‘slam dunk’

NASA’s astronaut candidates are giving new definition to “fly me to the moon” with their newly-revealed class patch. The 12 spaceflight trainees — 10 from the U.S. and two from the United Arab Emirates (UAE) — reported for two years of basic training …

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Haunting photo of dead ‘ghost star’ a cosmic Halloween treat

The European Space Observatory (ESO) has photographed a ‘ghost’ in deep space. A supernova is one of the most spectacular events in the universe: the incredible explosion of a dying star that leaves behind an intricate and colorful nebula of gas and …

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Perseverance to establish sample cache for later return to Earth

WASHINGTON — NASA and the European Space Agency have selected a location on Mars to cache samples collected by the Perseverance rover, one step in the overall process of returning those samples to Earth. NASA announced Oct. 28 that the agencies agreed …

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Ars Technica

The world’s most powerful rocket finally returns after a 3-year absence

This will be SpaceX’s first “direct-to-GEO” mission, which means the powerful Falcon Heavy rocket will launch its payload directly into a geostationary orbit nearly 36,000 km above the Earth’s surface. Typically such …

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This Stellar Ghost Isn’t Scary. It’s Stunning

It’s a whopping 554 million-pixel image that paints a cosmic marvel, called the Vela supernova remnant, in translucent lavenders, piercing pale blues and stringy sunset colors. In the spirit of Halloween, might I …

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γ Columbae as a recently stripped pulsating core of a massive star

Stellar cores, that is, the central regions where densities and temperatures are high enough for nuclear fusion processes to take place, are usually covered by an opaque envelope. Only in very rare cases, stars may expose their cores, for example, …

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Eerie image of the sun ‘smiling’ captured by NASA

The NASA Solar Dynamics Observatory caught the sun “smiling.” Seen in ultraviolet light, these dark patches are known as coronal holes and are regions where fast solar wind streams out into space. NASA …

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