Space News & Blog Articles

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Early Earth was Pummeled 10x More Than Previously Estimated

It’s no secret that Earth was bombarded with plenty of meteors for billions of years during the solar system’s early formation.  Estimates vary on how much material impacted the planet, but it had a considerable effect on the planet’s atmosphere and the evolution of life. Now, a new study from a team led by researchers at the Southwest Research Institute puts the number at almost ten times the number of previously estimated impacts.  That much of a difference could dramatically change how geologists and planetary scientists view the early Earth.

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A Mars Colony Could be a Hydrogen Factory, Providing Propellant for the Inner Solar System

There are lots of potential uses for a Mars colony.  It could be a research outpost, mining colony, or even a possible second home if something happens to go drastically wrong on our first one.  But it could also be a potential source of what is sure to be one of the most valuable elements in the space economy – hydrogen.  

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Proposed Centaur Mission Could Catch Comets in the Act of Formation

A recent plan would send a Centaur mission to Jupiter’s orbit and follow a comet through formation.

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“Mechazilla” is Getting its Arms. Now it can Catch Starships!

The past few weeks have seen a flurry of activity at SpaceX’s Boca Chica Launch Complex! In addition to the SN 20 prototype completing a static fire test with three of the new Raptor Vacuum 6 engines this month, the facility’s “Mechazilla” Launch Tower recently received a giant pair of steel arms. Once integrated with the ~135m (~450 ft) tower, these arms will be responsible for “catching” spent Starships and Super Heavy boosters as they return to Earth.

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The Radio Signal From Proxima Centauri Came From Earth After All

Turns out we were hearing ourselves! Earth can be a noisy place when listening to stars.

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This is How You Get Moons. An Earth-Sized World Just got Pummeled by Something Huge.

Titanic collisions are the norm in young solar systems. Earth’s Moon was the result of one of those collisions when the protoplanet Theia collided with Earth some 4.5 billion years ago. The collision, or series of collisions, created a swirling mass of ejecta that eventually coalesced into the Moon. It’s called the Giant Impact Hypothesis.

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Apparently, This Nebula Looks Like Godzilla. Do you see it?

We’ve written often about how pareidolia — the human tendency to see faces or other features in random images — works its magic across the cosmos. There’s the famous face on Mars, Bigfoot on Mars, and even Han Solo on Mercury.

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Artemis 1 Comes Together as the Orion Capsule is Stacked on Top of the Space Launch System

Since 2004, NASA has been working on the launch system that will send astronauts to the Moon for the first time since the Apollo Era. These efforts bore fruit in 2011 with the proposed Space Launch System (SLS), the heaviest and most powerful rocket since the Saturn V. Paired with the Orion spacecraft, this vehicle will be the workhorse of a new space architecture that would establish a program of sustained lunar exploration and even crewed missions to Mars.

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A new Climate Model Suggests That Venus Never had Oceans

Thanks to evidence provided by missions like NASA’s Magellan spacecraft, scientists have theorized that Venus likely experienced a catastrophic resurfacing event about 500 million years ago (give or take 200 Mya). This is believed to be the reason why Venus is such a hellish place today, with an atmosphere that is 92 times as dense as Earth’s, predominantly composed of carbon dioxide (CO2), and temperatures hot enough to melt lead.

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Primordial Gravitational Waves Continue to Elude Astronomers

The standard model of cosmology is a remarkably powerful and accurate description of the universe, tracing its evolution from the big bang to its current state, but it is not without mysteries. One of the biggest unsolved questions of the standard model is known as early cosmic inflation.

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The Early Solar System Had a Gap Where the Asteroid Belt is Today

Wind the cosmic clock back a few billion years and our Solar System looked much different than it does today. About 4.5 billion years ago, the young Sun shone much like it does now, though it was a little smaller. Instead of being surrounded by planets, it was ensconced in a swirling disk of gas and dust. That disk is called a protoplanetary disk and it’s where the planets eventually formed.

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A map of River Beds on Titan for Dragonfly to Explore

Explorers either have the benefit of having maps or the burden of creating them.  Similarly, space explorers have been building maps as they go, using all available tools.  Those tools might not always be up to the task, but at least something is better than nothing.  Now, a new map of an exploration destination has emerged – a map of the river valleys of Titan.

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I Could Look at James Webb Unboxing Pictures all Day

On Oct. 12th, the James Webb Space Telescope (JWST) arrived safely at Port de Pariacabo in French Guiana after spending 16 days traveling between California and South America. Since then, the observatory was transported from California to French Guiana and brought to a cleanroom in the Guyanese Space Center (GSC). Here, crews “unboxed” the observatory from its protective cargo container in preparation for launch – now targetted for Dec. 18th.

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Uh oh, one of Lucy’s Solar Arrays Hasn’t Latched Properly

As we’re fond of saying here at UT, space exploration is hard. Many things can go wrong when launching thousands of kgs of highly engineered equipment that took years to develop into space.  Now, something seems to have gone wrong with NASA’s latest Discovery mission.  Lucy, launched successfully by a ULA rocket on October 16th, seems to have a solar panel that didn’t quite “latch.”

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Meteorites Found With Little Pieces of Other Stars

When Carl Sagan said, “We are all made of star stuff,” he didn’t just mean we were made up of parts of our own star. Other stars contributed to the material that built our solar system, and some of that “presolar” material is still present in a pristine form inside meteorites.  Now, a team led by Dr. Nan Liu at Washington University in St. Louis took a close look at some of the parts of meteorites that formed before the Sun.  They held some exciting surprises and answers.

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There are 6×10^80 Bits of Information in the Observable Universe

Since the beginning of the Digital Age (ca. the 1970s), theoretical physicists have speculated about the possible connection between information and the physical Universe. Considering that all matter is made up of information that describes the state of a quantum system (aka. quantum information), and genetic information is coded in our DNA, it’s not farfetched at all to think that physical reality can be expressed in terms of data.

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The Large Magellanic Cloud Stole one of its Globular Clusters

Astronomers have known for years that galaxies are cannibalistic. Massive galaxies like our own Milky Way have gained mass by absorbing smaller neighbours.

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Lucy is off to Visit Jupiter’s Trojan Asteroids

NASA’s Lucy spacecraft is on its way. The spacecraft was launched into space on Saturday, October 16th on an Atlas 5 rocket. Its primary target is Jupiter’s Trojan asteroids.

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Something Really Wants our Attention. One Object Released 1,652 Fast Radio Bursts in 47 Days

The energetic phenomena known as Fast Radio Bursts (FRBs) are one of the greatest cosmic mysteries today. These mysterious flashes of light are visible in the radio wave part of the spectrum and usually last only a few milliseconds before fading away forever. Since the first FRB was observed in 2007, astronomers have looked forward to the day when instruments of sufficient sensitivity would be able to detect them regularly.

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What Are Your Options When you’ve Only Got Hours or Days to Prevent an Asteroid Impact?

Imagine a scenario where we detect an asteroid heading straight for Earth. Imagine that it will arrive in a couple of days, or worse, only a few hours. What could be done to stop it?

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With no Solid Surface, the Atmosphere of Jupiter Behaves Quite Differently Than Earth

Jupiter’s atmosphere has plenty of distinct features, including lightning and the Great Red Spot.  But the underlying processes that drive these features are less well understood, as the physics of the gases that make up Jupiter’s atmosphere is complicated.  A team of scientists from all over the globe has found a familiar process in all the chaos, though.  They think a process that happens here on Earth might be happening on a grander scale at Jupiter.

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