Category: Solar System

Our solar system

SpaceX’s Elon Musk endorsed Donald Trump for president. Here’s what it could mean for US space policy (op-ed)

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This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Svetla Ben-Itzhak is an Assistant Professor of Space and International Relations at  Johns Hopkins University Elon Musk officially endorsed Donald Trump for president of the United States on July 13, 2024, shortly after Trump survived an assassination attempt. Musk, a billionaire technology entrepreneur, has made groundbreaking contributions in multiple industries, particularly space travel and exploration. Even before Musk’s endorsement, Trump was reportedly considering giving the billionaire an advisory role if elected for a second term. With Musk’s public…

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Weird, ‘watermelon shape’ asteroids like Dimorphos and Selam may finally have an explanation

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The unusual shapes of the tiny asteroids Dimorphos and Selam have perplexed astronomers for years, but a new study finally explains how they got so strange. It also suggests these bizarrely shaped “moonlets” may be more common than scientists thought. Binary asteroids — pairs of asteroids that are essentially mini versions of the Earth-moon system — are pretty common in our cosmic neighborhood. These include the Didymos-Dimorphos duo that headlined NASA’s 2022 Double Asteroid Redirection Test (DART) mission. Previous research suggests that such binary asteroids form when a rubble-pile “parent”…

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New ISS images showcase auroras, moon and space station in glorious photos (video)

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The moon’s glow meets a multicolored aurora in a new astronaut image from space. International Space Station (ISS) and NASA astronaut Matthew Dominick, a veteran photographer of the Expedition 71 crew, captured the moon and auroras from his perch 250 miles (400 kilometers) above Earth. “The aurora have been amazing the past few days. Great timing for trying out a new lens that recently arrived on Cygnus,” Dominick said on X, formerly Twitter, in one of the posts. (Cygnus is a cargo spacecraft from Northrop Grumman that arrived Aug. 6).…

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Watch a Perseid fireball light up the skies above Macedonia in this striking video

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Perseid Meteor catch on Camera Live – 13 August 2024 #perseids – YouTube Watch On In the early hours of Tuesday morning (Aug. 13), at around 1:03 a.m. local time, a dazzling Perseid fireball streaked across Macedonian skies above Lake Ohrid. A webcam system installed throughout the Lake Ohrid region captured the dramatic sight.  “The video with the meteor is incredible. We see in the video 7 seconds of a falling meteor. I love technology today,” photographer Stojan Stojanovski, who created the webcam system, told Space.com in an email.  Related:…

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Aurora alert: Geomagnetic storms from solar flares may supercharge northern lights across US, Canada

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The sun’s stormy weather is supercharging auroras on Earth this week, due to a series of intense geomagnetic storms triggered by recent solar flares.  On Monday (Aug. 12), the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Space Weather Prediction Center (SWPC) detected a severe G4-class geomagnetic storm over Earth at 11 a.m. EDT (1500 GMT) that surely would have amplified northern lights displays across the United States if it had not occurred in the middle of the day.  “A severe geomagnetic storm includes the potential for aurora to be seen…

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Axiom Space’s next astronaut mission to the ISS with SpaceX delayed to spring 2025

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Axiom Space’s next astronaut mission to the International Space Station will be delayed by several months, into 2025, due to required interagency approval processes. Ax-4, the name of that private astronaut effort by Axiom Space, had been targeted to launch no earlier than October of this year. It will now lift off no earlier than spring 2025, NASA officials announced on Friday (Aug. 9) via  X. “The Ax-4 crew members are pending approval to fly to the orbiting lab by the Multilateral Crew Operations Panel,” NASA officials wrote in the…

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NASA satellite data adds key pollutant to national environmental justice database

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Scientists harnessed satellite technology to track a key air pollutant previously absent from a national database, NASA announced earlier this week, marking a crucial step forward in monitoring differences in air quality across the U.S. and identifying groups whose health is unfairly affected. Measurements of nitrogen dioxide, which is primarily released into air through the burning of fossil fuels and can lead to respiratory diseases like asthma among other health problems, had been missing from the Environmental Justice Screening and Mapping Tool, or EJScreen. The database is maintained by the…

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Marvel and ‘Star Wars’ take note. ‘Star Trek’ is now Hollywood’s ultimate shared universe

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Shared universes go back way further than Tony Stark, Steve Rogers and co sitting down for some post-Chitauri shawarma. Superheroes have been moonlighting in each other’s comic books for decades, while Cheers regulars frequently paid Frasier a visit in Seattle. It wasn’t until Marvel Studios launched the MCU (Marvel Cinematic Universe), however, that the concept started to gain serious mainstream traction.  By incorporating the contrasting adventures of Iron Man, Captain America, Thor and Black Widow into one gigantic, overarching narrative, Marvel successfully blended cinematic spectacle with the “must-watch-every-episode” ethos of…

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Origami-inspired ‘transformer’ robots could help build habitats in space (photo)

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A newly designed “transformer” robot with the ability to change shape could one day be used to build habitats in space. Engineers from North Carolina State University (NC State) have created a plastic cubed structure that can transform into more than 1,000 configurations using only three active motors. In theory, their design — which was largely inspired by the paper-folding art of origami — offers a more efficient way to send assembly structures into space, where the robot could then “transform” to serve various purposes, including carrying a load, according…

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Small black holes could play ‘hide-and-seek’ with elusive supermassive black hole pairs

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Binary pairings of small black holes could be used by astronomers in a cosmic game of “hide-and-seek” to hunt much larger, yet more elusive, supermassive black hole binaries. The technique could, therefore, help solve the mystery of how supermassive black holes grew so fast in the early universe. Detecting black holes is no easy task despite their reputation as fearsome cosmic titans. All black holes are surrounded by a one-way light-trapping boundary called an “event horizon” that ensures they emit no light. Even the supermassive black holes at the hearts…

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