New image of Earth’s new mini-moon

Late in the day on Thursday, astronomers released this new image of 2020 CD3, a small object now confirmed to be orbiting Earth temporarily. It was apparently captured into Earth orbit 3 years ago. Its fate, here.

Marsquakes: InSight lander shows active faults in planet’s crust

The results from NASA’s Mars InSight lander’s first 10 months on the Martian surface have been published in a series of papers.

Pollux: The brighter twin star

Pollux, the brightest star in the constellation Gemini, blazes in a golden light next to its bluish-white heavenly twin, Castor, in the evening skies of the Northern Hemisphere’s spring.

Fifty years of data show spring and fall bird migrations changing

Bird-banding data in North America shows a spring migration pattern that’s become progressively earlier with each of the last 5 decades, and a fall migration that’s lasting longer than 50 years ago.

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Cosmic rays and Titan’s organic molecules

A new study from researchers in Tokyo helps explain how cosmic rays affect prebiotic organic chemistry in the atmosphere of Saturn’s moon Titan.

Castor is six stars in one

The bright bluish-white star, Castor, in the constellation Gemini, appears to our eyes as a single star. But it’s actually a family of 6 stars.

African dust bombards the Canary Islands

These hot, dust-laden winds are known as “la calima” and happen most often in winter. They can blow at up to 75 mph (120 kph). The dust kicked up last weekend in Africa drifted over the Canary Islands, shutting down airports and stranding travelers.

Venus phases: Late 2019 and early ’20

This video tracks a telescopic view of Venus from when it came into easy view in our evening sky – around October 2019 – to May 2020. It shows how Venus wanes in phase as the planet’s disk sizes increases, and explains why.

Using radio waves to discover and study exoplanets

A new study from researchers in the Netherlands shows how scientists can detect exoplanets orbiting red dwarf stars, and learn about their environments, from the radio waves generated by auroras on those worlds.

Did early humans in Africa interbreed with a mysterious, extinct species?

New research suggests that early humans in Africa interbred with a ghost population that likely split from the ancestors of humans and Neanderthals between 360,000 and 1.02 million years ago.

What is dark matter?

Dark matter doesn’t emit light. It can’t be directly observed with any of the existing tools of astronomers. Yet astrophysicists believe it and dark energy make up most of the mass of the cosmos. What dark matter is, and what it isn’t. here.

Come to know orange Arcturus in Boötes

Orange Arcturus is more evolved than our sun and has swollen up to a larger size. It’s less than 37 light-years away and appears as the brightest star north of the celestial equator. The Big Dipper can help you find it.

Longest lunar month starts February 23

The longest lunar month in 2020 starts with the new moon on February 23, and concludes with the new moon on March 24. Details about 2020’s lunar months, here.