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Asteroids

This is a Test: Asteroid Tracking Network Observes Oct. 12 Close Approach

On Oct. 12, 2017, a small (15-30 meter) asteroid known as 2012 TC4 will safely fly past Earth. Based on continuing observations, scientists have determined that it will pass the Earth at a distance of about 26,000 miles (42,000 kilometers). Credits: NASA/JPL-Caltech

This is a Test: Asteroid Tracking Network Observes Oct. 12 Close Approach

This is a Test: Asteroid Tracking Network Observes Oct. 12 Close Approach On Oct. 12, a small asteroid designated 2012 TC4 will safely pass by Earth at a distance of approximately 26,000 miles (42,000 kilometers). This is a little over one-tenth the distance to the […]

Curious Kids: Why is the Earth round?

The mass of the Earth is big enough that the gravitational force it creates can pull the hard shape of ice, rock and metal into a sphere. NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA's Goddard Space Flight Center

Curious Kids: Why is the Earth round?

Curious Kids: Why is the Earth round? The mass of the Earth is big enough that the gravitational force it creates can pull the hard shape of ice, rock and metal into a sphere. NASA Earth Observatory images by Joshua Stevens, using Suomi NPP VIIRS […]

NASA’s Asteroid-Bound Spacecraft to Slingshot Past Earth

This artist's concept shows the OSIRIS-REx spacecraft passing by Earth. Credits: NASA's Goddard Space Flight Center/University of Arizona

NASA’s Asteroid-Bound Spacecraft to Slingshot Past Earth

NASA’s Asteroid-Bound Spacecraft to Slingshot Past Earth NASA’s asteroid sample return mission, OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer), will pass about 10,000 miles (16,000 kilometers) above Earth just before 12:52 p.m. EDT on Friday, Sept. 22. Using Earth as a […]

Asteroid Flyby Will Benefit NASA Detection and Tracking Network

The safe flyby of asteroid 2012 TC4 as it passes under Earth on Oct. 12, 2017. While scientists cannot yet predict exactly how close it will approach, they are certain it will come no closer than 4,200 miles (6,800 kilometers) from Earth's surface. Credits: NASA/JPL-Caltech

Asteroid Flyby Will Benefit NASA Detection and Tracking Network

Asteroid Flyby Will Benefit NASA Detection and Tracking Network NASA scientists are excited about the upcoming close flyby of a small asteroid and plan to use its upcoming October close approach to Earth as an opportunity not only for science, but to test NASA’s network […]

We worked out what it would take to wipe out all life on a planet – and it’s good news for alien hunters

Shutterstock

We worked out what it would take to wipe out all life on a planet – and it’s good news for alien hunters

We worked out what it would take to wipe out all life on a planet – and it’s good news for alien hunters Shutterstock Rafael Alves Batista, University of Oxford and David Sloan, University of Oxford The first exoplanet was spotted in 1988. Since then […]

As the world embraces space, the 50 year old Outer Space Treaty needs adaptation

A lot has changed since the Outer Space Treaty was signed in 1967. NASA Image and Video Library

As the world embraces space, the 50 year old Outer Space Treaty needs adaptation

As the world embraces space, the 50 year old Outer Space Treaty needs adaptation A lot has changed since the Outer Space Treaty was signed in 1967. NASA Image and Video Library Duncan Blake, University of Adelaide and Steven Freeland, Western Sydney University The Outer […]

How a Speck of Light Becomes an Asteroid

taken during one night of observation by the Catalina Sky Survey near Tucson, Arizona, the speck of light that moves relative to the background stars is a small asteroid that was, at the time, about as far away as the moon. Credits: NASA/JPL-Caltech/CSS-Univ. of Arizona

How a Speck of Light Becomes an Asteroid

How a Speck of Light Becomes an Asteroid On the first day of the year 1801, Italian astronomer Gioacchino Giuseppe Maria Ubaldo Nicolò Piazzi found a previously uncharted “tiny star” near the constellation of Taurus. The following night Piazzi again observed this newfound celestial object, […]