Kinga Sandén

Gianluca Masi / AP

Utrikes

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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Olivia Wikström

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Nya rymdkapplöpningen

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

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Helena Sällström

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.



2023 DW

Nasa

Linnea Järkstig

VCT Sweden

Patrik Dahlin

Nasa.

James Webb-teleskopet

En extrasolär planet, eller exoplanet, är en planet som befinner sig utanför vårt eget solsystem. De första upptäckterna gjordes under 1990-talet. Den 5 november 2021 fanns 4 868 planeter i 3 597 solsystem registrerade. Den stora majoriteten upptäcks genom flera olika indirekta metoder i stället för att observeras direkt och de flesta är också massiva jätteplaneter i Jupiters storleksklass, men vars sammansättning mer liknar de jordlika planeterna av sten och metall.
Extrasolära planeter blev ämne för vetenskaplig undersökning under 1850-talet. Astronomer trodde i och för sig allmänt att de existerade, men det var inte känt hur vanliga eller hur lika de var planeterna i vårt solsystem. De första bekräftade upptäckterna gjordes under 1990-talet. Under 2000-talet upptäcktes flera hundra exoplaneter. I dagsläget uppskattar man att minst 10 % av de solliknande stjärnorna har planeter, men den verkliga andelen kan vara mycket större. Upptäckten av exoplaneter aktualiserar ytterligare frågan huruvida någon av dessa kan upprätthålla utomjordiskt liv.I början av 2010 verkade Gliese 581 d, den fjärde planeten till den röda dvärgen Gliese 581 (ungefär 20 ljusår från jorden), vara det bästa exemplet på en stenig exoplanet som kretsar nära den beboeliga zonen runt sin stjärna. Om man använder strikta termer så är den utanför Guldlocks zon, men det kan förhålla sig så att växthuseffekten höjer dess yttertemperatur så pass att den kan hysa flytande vatten. När exoplaneten Kepler-452b upptäcktes 2015, var det den första planet upptäckt med nämnda gynnsamma kriterier uppfyllda, som även kretsade kring en stjärna lik vår sol.

Exoplanet

Anders Hovne

Året som gått

The following scientific events occurred or are scheduled to occur in 2022.

2022 in science

Internationella rymdstationen ISS

Swedavia.

Swedavia

Swedavia Partner

Nasas Marsresor

My power’s really low, so this may be the last image I can send. Don’t worry about me though: my time here has been… https://t.co/VetcaH2mua

Insight, stiliserat som InSight, är en Marslandare som sköts upp den 5 maj 2018. Namnet är en akronym för Interior Exploration med Seismic Investigations, Geodesy och Heat Transport.

Insight

Peter Johansson

Orion (officially Orion Multi-Purpose Crew Vehicle or Orion MPCV) is a partially reusable crewed spacecraft used in NASA's Artemis program. The spacecraft consists of a Crew Module (CM) space capsule designed by Lockheed Martin and the European Service Module (ESM) manufactured by Airbus Defence and Space. Capable of supporting a crew of six beyond low Earth orbit, Orion can last up to 21 days undocked and up to six months docked. It is equipped with solar panels, an automated docking system, and glass cockpit interfaces modeled after those used in the Boeing 787 Dreamliner. A single AJ10 engine provides the spacecraft's primary propulsion, while eight R-4D-11 engines, and six pods of custom reaction control system engines developed by Airbus, provide the spacecraft's secondary propulsion. Although compatible with other launch vehicles, Orion is primarily intended to launch atop a Space Launch System (SLS) rocket, with a tower launch escape system.
Orion was originally conceived in the early 2000s by Lockheed Martin as a proposal for the Crew Exploration Vehicle (CEV) to be used in NASA's Constellation program. Lockheed Martin's proposal defeated a competing proposal by Northrop Grumman and was selected by NASA in 2006 to be the CEV. Originally designed with a service module featuring a new "Orion Main Engine" and a pair of circular solar panels, the spacecraft was to be launched atop the Ares I rocket. Following the cancellation of the Constellation program in 2010, Orion was heavily redesigned for use in NASA's Journey to Mars initiative; later named Moon to Mars. The SLS replaced the Ares I as Orion's primary launch vehicle, and the service module was replaced with a design based on the European Space Agency's Automated Transfer Vehicle. A development version of Orion's CM was launched in 2014 during Exploration Flight Test-1, while at least four test articles have been produced. Orion was primarily designed by Lockheed Martin Space Systems in Littleton, Colorado. As of 2022, three flight-worthy Orion spacecraft are under construction, with one completed and an additional one ordered, for use in NASA's Artemis program.
The first completed unit, CM-002, was launched on November 16, 2022 on Artemis 1.



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