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Interstellar forecast for a nearby star: Raining comets! The Hubble Space Telescope has discovered doomed, wayward comets plunging into the star HD 172555.
If you’ve never spotted an asteroid, now would be a good time to try. Vesta’s 2017 opposition is around now. Guy Ottewell provides charts and explains more.
No matter where you are on Earth on December, January and February evenings, you’re looking toward bright stars in our local spiral arm.
ISS astronauts will work on a complex upgrade to the station’s power system during the January 13, 2017 spacewalk. Spacewalk begins around 7 a.m. EST (1200 UTC) and is expected to last about 6 hours.
All you need to know about 2017’s major meteor showers! How and when to watch, and more.
A new agreement between the European Southern Observatory and Breakthrough Initiatives will let ESO’s Very Large Telescope seek planets in the star system next door.
The Hubble Space Telescope is gazing along the future trajectories of the 2 Voyager spacecraft – launched in 1977 – now heading into uncharted interstellar space.
A powerful telescope orbiting Mars gives us a new view of Earth and its moon, showing continent-size detail on Earth and the relative size of the moon.
NASA’s new Lucy mission will tour 6 Trojan asteroids in Jupiter’s orbit. The other mission will go to 16 Psyche, a metal asteroid.
A new ultra-deep X-ray image from Chandra X-ray Observatory has given astronomers their best look yet at the growth of black holes over billions of years, starting soon after the Big Bang.
Can Mars ever appear as large as the moon in Earth’s sky? Heck no.
If and when 2 stars in this binary system merge – as predicted – they’ll increase in brightness 10 thousandfold, temporarily becoming a bright star in Earth’s sky.
Don’t miss these gorgeous images from ESO’s VISTA infrared survey telescope of the Orion Molecular Cloud complex, a place in space where new stars are forming.
Two ISS astronauts will perform the 1st spacewalk of 2017 on Friday, January 6. Live TV coverage starts at 5:30 a.m. EST (1030 UTC). The spacewalk begins at 7 a.m. EST (1200 UTC).
In a breakthrough study, astronomers pinpointed the location in the sky of a fast radio burst. That let them determine its home galaxy, and improve their theories about its cause.
The hole is gigantic and facing Earth’s way. Possible aurora sightings at the latitude of the northern U.S. – for example, in Michigan or Maine – on January 4 and 5.
Answers to commonly asked questions about seeing one of nature’s wonders: the aurora borealis or northern lights.
December solstice 2016 was December 21. Earth is closest to the sun for 2017 on January 4. Coincidence?
Some historians believe Luna 1 – a Soviet spacecraft – was supposed to hit the moon. It didn’t but it was the first earthly craft to reach the moon, and sweep past.
Ceres was the first asteroid ever discovered, in 1801, and it’s still the largest body in the asteroid belt. Nowadays, we call it a dwarf planet, and a spacecraft has been orbiting it!
Spot elusive Mercury before dawn