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It swept nearest the sun in September, then sped away again, back to interstellar space. Astronomers named it `Oumuamua. It’s dark red, very elongated and unlike anything in our solar system.
Learn why the Hubble Space Telescope is named for this astronomer.
The auroras over Earth’s north and south poles typically mirror each other. But X-ray observations show that Jupiter’s auroras pulsate on different timescales.
What do you think? Should we be advertising our presence in space?
Future space missions won’t be able to carry all their building materials from Earth. Competitors are challenged to fabricate habitats using indigenous materials. $2 million prize!
This star has a spiral disk of dust around it. Processes in the inner disk – winds, or swirls or clashes of pebbles – seem to be casting shadows on the outer disk.
A new study shed light on what powers Enceladus’ extraordinary geologic activity, while – at a conference in Seattle last week – space visionaries discussed a return to Saturn’s geyser moon.
A new and awesome batch of images has emerged from the Juno mission’s most recent flyby of Jupiter. Plus, the mission gets a new project manager.
For many, for decades, Carl Sagan’s name was synonymous with astronomy.
Supernovae like this one – designated iPTF14hls – usually remain bright for about 100 days. This one stayed bright for 600 days. Then, astronomers found a 1954 explosion in the same spot in the sky.
The craft that flew by Pluto in 2015 is heading for the Kuiper Belt object 2014 MU69. NASA and the New Horizons spacecraft team want you to help nickname it.
Cameras have come a long way since the first Mars rover in 1997. The newest Mars rover from NASA – on the Mars 2020 mission – will have a wider field of view, plus more color and 3-D imaging.
This is only a test. Astronomers report on the TC4 Observation Campaign, which, in October, used a real Near-Earth Asteroid to practice our global response to a potential asteroid threat.
Ever noticed a rising full moon appear huge on the horizon? It’s called the “moon illusion,” and it’s a trick your brain is playing.
On July 3, 2016 – as Comet 67P erupted with a plume of dust – the orbiting Rosetta spacecraft happened to pass right through the dust cloud.
Cosmologists are heading back to their chalkboards, as experiments designed to figure out the nature of dark matter come up empty.
This small asteroid (or comet) passed under Earth’s orbit on October 14 at about 60 times the moon’s distance. Now it appears to be heading toward interstellar space again.
“Looking at gene expression … we really see an explosion, like fireworks taking off, as soon as the human body gets into space.”
Two recent studies explore the possibility of an ancient ocean on dwarf planet Ceres, largest world in the asteroid belt. If it existed, what happened to it? And could Ceres still have liquid water today?
A new study says a hole in the moon’s Marius Hills region is the skylight of an underground lava tube large enough to house a city.
Come to know the Pleiades, or 7 Sisters
Fern, contrail shadow, singing dunes