Daniel Persson

ESA/Hubble, Digitized Sky Survey, Nick Risinger (skysurvey.org), N. Bartmann

Utrikes

Kinga Sandén

Gianluca Masi / AP

The dinosaurs went extinct by an asteroid impact many years ago. Here at NASA and around the world, there are teams of experts making sure we can actually do something about it if an asteroid were to ever threaten Earth. We’re studying these rocky, airless remnants to better understand the early formation of our solar system.
 
“65” actor Adam Driver and NASA Planetary Defender Kelly Fast discuss how we find, track, and monitor near-Earth asteroids, as well as test technologies that could one day be used to prevent a potential impact, should a hazardous asteroid be discovered in the future. The duo also talks about the OSIRIS-REx mission and the asteroid sample the spacecraft will bring to Earth this September. 
 
For more information on NASA’s Planetary Defense Coordination Office: https://www.nasa.gov/specials/pdco/index.html
 
For more on NASA’s OSIRIS-REx Mission: https://nasa.gov/osirisrex
 
Follow NASA’s Asteroid Watch on Twitter: https://twitter.com/AsteroidWatch
 
Follow NASA Solar System on Twitter, Facebook and Instagram: https://twitter.com/NASASolarSystem, https://www.facebook.com/NASASolarSystem/, https://www.instagram.com/nasasolarsystem/?hl=en
 
Producers: Scott Bednar, Jessica Wilde, Emily Furfaro, Josh Handal
Editor/Graphics: Matthew Schara

Movie Footage courtesy of Sony Pictures Entertainment 65

Credit: NASA

2023 DZ2 is an asteroid roughly 70 meters in diameter, classified as a near-Earth object of the Apollo group, and originally a Virtual Impactor (VI). It was first observed on 27 February 2023, when it was 0.11 AU (16 million km) from Earth, with the Isaac Newton Telescope by Dr. Ovidiu Vaduvescu, Freya Barwell, and Kiran Jhass (ING and  University of Sheffield student support astronomers) within the EURONEAR project. It will pass 174,641 ± 30 km (108,517 ± 19 mi) of Earth on March 25, 2023. This is a little less than half the distance to the Moon. This will be the largest asteroid to approach this close since 2019 OK. On March 21, 2023 with a 66-day observation arc, it was removed from the Sentry Risk Table.
The 2023 approach will be visible to amateur astronomers with modest telescopes and telescopes equipped with an image sensor. From 20–24 March 2023 it will be visible in the constellation of Cancer. At about 17:20 UT on the 25th the asteroid will brighten to about apparent magnitude 10 while over Southeast Asia, and may be visible in 10×50 binoculars. But for many locations the asteroid will not get brighter than magnitude 12 before setting and will be out of the reach of binoculars.



2023 DZ2

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Linus Lindgren

 Swedish Space Corporation

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Helena Sällström

A rocket almost completely made of 3D-printed parts is set for its third launch attempt, from Launch Complex 16 in Cape Canaveral, Florida.

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Joel Malmén

Jaime Hernandez / AP

Ward Wines

Mer-redaktionen

David J. Phillip / AP

Innovation & framtid

Olivia Wikström

A space suit or spacesuit is a garment worn to keep a human alive in the harsh environment of outer space, vacuum and temperature extremes. Space suits are often worn inside spacecraft as a safety precaution in case of loss of cabin pressure, and are necessary for extravehicular activity (EVA), work done outside spacecraft. Space suits have been worn for such work in Earth orbit, on the surface of the Moon, and en route back to Earth from the Moon. Modern space suits augment the basic pressure garment with a complex system of equipment and environmental systems designed to keep the wearer comfortable, and to minimize the effort required to bend the limbs, resisting a soft pressure garment's natural tendency to stiffen against the vacuum. A self-contained oxygen supply and environmental control system is frequently employed to allow complete freedom of movement, independent of the spacecraft.
Three types of space suits exist for different purposes: IVA (intravehicular activity), EVA (extravehicular activity), and IEVA (intra/extravehicular activity). IVA suits are meant to be worn inside a pressurized spacecraft, and are therefore lighter and more comfortable. IEVA suits are meant for use inside and outside the spacecraft, such as the Gemini G4C suit. They include more protection from the harsh conditions of space, such as protection from micrometeoroids and extreme temperature change. EVA suits, such as the EMU, are used outside spacecraft, for either planetary exploration or spacewalks. They must protect the wearer against all conditions of space, as well as provide mobility and functionality.Some of these requirements also apply to pressure suits worn for other specialized tasks, such as high-altitude reconnaissance flight. At altitudes above the Armstrong limit, around 19,000 m (62,000 ft), water boils at body temperature and pressurized suits are needed.
The first full-pressure suits for use at extreme altitudes were designed by individual inventors as early as the 1930s. The first space suit worn by a human in space was the Soviet SK-1 suit worn by Yuri Gagarin in 1961.



Space suit

Marcus Andersson

Mattias Sävenstrand

Kia Partner

Recently discovered asteroid 2023 DW has been predicted to have a close encounter with Earth on Feb. 14, 2046. See NASA's current odds of impact along with an orbit animation. 

The space rock is estimated to be about 50 meters (164 ft) in diameter. 

Credit: Space.com | orbit animation: NASA/JPL-Caltech | edited by Steve Spaleta (https://twitter.com/stevespaleta)

Music: Migratory Birds by Curved Mirror / courtesy of http://www.epidemicsound.com

We've been tracking a new asteroid named 2023 DW that has a very small chance of impacting Earth in 2046. Often whe… https://t.co/SVY8udjLPd

#2023DW. With just 3 days of arc, I found about 1 in 400 chance of impact on Feb. 14, 2046 (JPL 1/770). Surely this… https://t.co/9oYAnYGqlB

2023 DW is a near-Earth asteroid of the Aten group. It is approximately 50 meters (160 feet) in diameter, roughly the size of the asteroid that caused the Tunguska event, and was discovered by Georges Attard and Alain Maury, from the MAP (Maury/Attard/Parrott) asteroid search program in San Pedro de Atacama on 26 February 2023, when it was 0.07 AU (10 million km) from Earth.  On 28 February 2023, with an observation arc of 1.2 days, it was rated 1 on the Torino scale for a virtual impactor on 14 February 2046 at 21:36 UTC. The nominal approach is expected to occur about five hours before the impact scenario at 14 February 2046 16:57 ± 1.2 days. With a Palermo scale rating of –2.12, the odds of impact are about 132 times less than the background hazard level. The asteroid has not been observed since 4 March. By 5 March, the asteroid had become more difficult to observe as it was within 30 degrees of the waxing gibbous moon.It came to perihelion (closest approach to the Sun) on 26 November 2022, and then approached Earth from the direction of the Sun making closest Earth approach on 18 February 2023 at distance of about 8.7 million km.



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