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Updated: 55 min 13 sec ago

Once the Spitzer Space Telescope is dead, what will take its place?

13 hours 13 min ago
Infrared observing won’t go down with this flagship, but it will change.
Categories: Astronomy

A timeline of the Spitzer Space Telescope's 16 years of science

13 hours 13 min ago
Spitzer has far outlived expectations, continuing to reveal the wonders of the universe even as its instruments began shutting down.
Categories: Astronomy

What will happen to the Spitzer Space Telescope after it's retired?

Mon, 01/27/2020 - 05:00
Spitzer will be powered down this week. But what happens to the orbiting telescope now?
Categories: Astronomy

The Sky This Week from January 24 to February 2

Fri, 01/24/2020 - 05:00
Brilliant Venus passes closer to distant Neptune than it has in 36 years, highlighting a week that features several outstanding celestial sights.
Categories: Astronomy

Skeptics of dark energy raise concerns, but remain outnumbered

Fri, 01/24/2020 - 05:00

Some scientists have been poking at the foundations of dark energy, but many say the concept remains on solid, if mysterious, ground.

Categories: Astronomy

Celebrating the legacy of the Spitzer Space Telescope

Thu, 01/23/2020 - 05:00

The iconic space telescope is getting ready for its last few days of exploring the universe. 

Categories: Astronomy

This super-bright supernova might be the result of colliding stars

Thu, 01/23/2020 - 05:00
The superluminous supernova SN 2006gy may have been the result of a small, dense white dwarf spiraling into the core of its giant stellar companion.
Categories: Astronomy

The ancient Earth atmosphere may have been mostly carbon dioxide

Wed, 01/22/2020 - 05:00
Micrometeorites billions of years old provide a unique glimpse at our planet's atmospheric past.
Categories: Astronomy

These are the universe's five strangest stars

Wed, 01/22/2020 - 05:00
Staggeringly huge, surprisingly small, and blisteringly fast — stars come in many sizes and flavors. Here are some of the strangest.
Categories: Astronomy

Explore 12 great lunar targets

Wed, 01/22/2020 - 05:00

Sharpen your observing skills on the Moon's craters, lava flows, and an elusive letter X.

Categories: Astronomy

Meteorite impact 2 billion years ago may have ended an ice age

Tue, 01/21/2020 - 05:00
The Australian crater Yarrabubba is the oldest known on Earth, according to new measurements, and it might be linked to the end of a “Snowball Earth” ice age.
Categories: Astronomy

You can help name NASA's Mars 2020 rover

Tue, 01/21/2020 - 05:00
Voting is now open on nine entries submitted by school-age children across the U.S.
Categories: Astronomy

The two main types of exoplanets: Small and rocky or big and gassy

Tue, 01/21/2020 - 05:00
An astrophysicist explains why planets only come in two main flavors.
Categories: Astronomy

Making air from Moon dust: Scientists create a prototype oxygen plant

Tue, 01/21/2020 - 05:00
Scientists have created a prototype "lunar oxygen plant" by testing a method for extracting oxygen from imitation Moon rocks that could be invaluable for lunar settlements.
Categories: Astronomy

SpaceX completed its last test before bringing astronauts to space

Mon, 01/20/2020 - 05:00
A successful test of the abort system means the spaceflight company is on the verge of sending humans into space.
Categories: Astronomy

New high-energy gamma-ray sources found in the galaxy

Mon, 01/20/2020 - 05:00
The finding may help physicists better understand where cosmic rays — energetic particles that permeate the universe — come from.
Categories: Astronomy

The Sky This Week from January 17 to 26

Fri, 01/17/2020 - 05:00
While a crescent Moon passes near three planets this week, Venus has a rare close meeting with Neptune.
Categories: Astronomy

Four strange new objects found around the Milky Way's huge black hole

Fri, 01/17/2020 - 05:00
The dust-shrouded objects may be binary stars merging as they orbit the supermassive black hole in our galaxy's core.
Categories: Astronomy

Second terrestrial planet found around closest star to the Sun

Wed, 01/15/2020 - 05:00
Located just 4.2 light-years away, the star Proxima Centauri now has both an Earth-like world in its habitable zone and a more distant super-Earth.
Categories: Astronomy

NASA will broadcast final spacewalk to repair AMS

Tue, 01/14/2020 - 05:00
The next three spacewalks will complete fixes to the space station’s solar panels and Alpha Magnetic Spectrometer particle detector.
Categories: Astronomy

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