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Happy World Penguin Day
Antarctica has 12 million penguins and 5 penguin species, according to a new report released today. But at least 2 penguin species have recently and significantly declined.
April 25, 2017
Raining stars
Although they're called shooting stars, meteors aren't star-related. They're really comet dust. Nature photographer John Ashley created this composite image of the Lyrid meteor shower peak April 22.
April 25, 2017
Cassini completes final, fateful Titan flyby
This was Cassini's 127th Titan flyby. The craft passed at an altitude of about 608 miles (979 km) above the moon's surface. Cassini is now in position for its daring Grand Finale.
April 24, 2017
This asteroid and comet look similar
Radar images of close-passing large asteroid 2014 JO25, which swept near last week, show it looks a lot like Comet 67P/Churyumov–Gerasimenko, which was explored by the Rosetta spacecraft.
April 24, 2017
How our Milky Way looks from space
Composite of 2 spiral galaxies - offered in celebration of the Hubble Space Telescope's 27th birthday today - shows how our Milky Way galaxy might look if we were outside it.
April 24, 2017
See it! Meteors, moon, Venus photos
The Lyrid meteor shower didn't produced as many meteors as hoped, but we some lovely photos. And the moon and Venus were awesome Sunday morning!
April 23, 2017
Moon and Venus before Sunday’s sunrise
Before sunrise on April 23, 2017, you'll find a beautiful pairing of the waning crescent moon and dazzling planet Venus in your eastern sky.
April 22, 2017
Celebrating science, the Earth and the sky
Earth Day and the March for Science, April 22. International Dark Sky Week, April 22-28. Links and resources for all 3, here.
April 21, 2017
Earth and moon between Saturn’s rings
Cassini spacecraft orbiting Saturn obtained this new image April 12. The craft was 870 million miles (1.4 billion km) from Earth.
April 21, 2017
Cassini’s final encounter with Titan
Cassini's final closest approach to Saturn's moon Titan is scheduled for April 21 at 11:08 p.m. PDT (2:08 a.m. EDT or 6:08 UTC on April 22).
April 21, 2017
