Comet 46P/Wirtanen is closest to the sun today. It’ll be closest to Earth next week. With the moon waxing and casting more light in the sky, the time to see the comet is now. Charts, tips and other info here.
Greg Hogan in Kathleen, Georgia caught Comet Wirtanen on February 26, 2018. He wrote: "This comet was FINALLY over my tree line of my neighborhood. Here is a shot I got with my 85mm lens on a Canon 7D. I was able to find it quickly with just a quick shot pointed in the right direction. Taken 9:30pm EST." Canon 7D, 85mm, 5-sec exposure, ISO 6400, f2.8.
The list includes neon fish, a fast-spinning spider, moray eels, venomous snakes, and more!
This new sea horse is the size of a jelly bean. Via Calacademy
According to the recent IPCC Special Report, warming of 1.5°C (2.7°F) is an important threshold for many climate impacts. What might our planet look like with 1.5°C of warming?
Image via underworld /shutterstock/The Converation.
Audubon’s annual Christmas Bird Count is one of the longest-running citizen science projects in existence. How to participate.
Photograph of a tufted titmouse taken by Michele Black during the Great Backyard Bird Count.
#1. Geminid meteor numbers tend to intensify as evening deepens into late night, with the greatest number of meteors likely falling an hour or 2 after midnight. That’s true no matter where you are on the globe.
NASA announced Dec. 10 that for the 2nd time in history, a human-made object has reached the space between the stars.
This illustration shows the position of NASA’s Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the sun that extends well past the orbit of Pluto. Image via NASA/JPL-Caltech
Many have predicted a weak sunspot cycle in the years ahead, but new work from India suggests otherwise. The work dashes speculations of a sun-induced global cooling of Earth’s climate in the coming decade.
This was the sun on Sunday, December 9, 2018, as seen on the The Sun Now page of the Solar Dynamics Observatory. Notice ... no sunspots.
Why is the Geminid meteor shower best around 2 a.m.? It’s because that’s when the shower’s radiant point – near the bright star Castor in the constellation Gemini – is highest in the sky.
Geminid meteors radiate from near star Castor in Gemini.
The peak of the Geminid meteor shower is coming up on the mornings of December 13 and 14.
John Ashley caught this amazing earthgrazer meteor on December 6, 2018. Earthgrazers are best seen in the evening hours. Watch for them during this week's Geminid meteor shower! John wrote: "It lasted for approximately four seconds, and I never saw any color but white. It left behind a glowing smoke train that lasted for at least 24 minutes. John commented: "The meteor went dark just above Dusty Star Mountain, or "Iszika-kakatosi" in Blackfeet, which translates to
'smoking star.'" Thanks, John! Nikon D750, Rokinon 24mm lens @ f1.4, 30 sec, ISO 3200.