Space News & Blog Articles

Our Sun is about 4.6 billion years old. We know that from models of Sun-like stars, as well as through our observations of other stars of similar mass. We know that the Sun has grown hotter over time, and we know that in about 5 billion years it will become a red giant star before ending its life as a white dwarf. But there are many things about the Sun’s history that we don’t understand. How active was it in its youth? What properties of the young Sun allowed life to form on Earth billions of years ago?

When the poet Horace said “We are but dust and shadow”, he probably didn’t think that dust itself could create a shadow. But it can, and that shadow can obscure even some of the most powerful explosions in the universe.  At least that’s the finding from new research from an international team using data from the recently retired Spitzer telescope.  It turns out dust in far away galaxies can obscure supernovas.

In this series we are exploring the weird and wonderful world of astronomy jargon! It’s easy to measure your interest in today’s topic: the astronomical unit!

As a field, the Search for Extraterrestrial Intelligence suffers from some rather significant constraints. Aside from the uncertainty involved (e.g., is there life beyond Earth we can actually communicate with?), there are the limitations imposed by technology and the very nature of space and time. For instance, scientists are forced to contend with the possibility that by the time a message is received by an intelligent species, the civilization that sent it will be long dead.

With all the news recently about relatively young rocket companies successfully flinging their founders and some actual astronauts into space, it might be surprising that the rocket company with the most experience of all still hasn’t gotten its flagship new rocket off the ground with people yet.  And after yet another delay, there is now no firm date for the launch of Boeing’s Starliner.

The Perseids, a rare eruption of nova RS Ophiuchi and a challenging dawn comet round out an amazing week of skywatching.

In this series we are exploring the weird and wonderful world of astronomy jargon! You probably don’t know how close you are to today’s topic: parallax!

On July 20th, 2021, NASA’s Juno spacecraft conducted a flyby of Jupiter’s (and the Solar System’s) largest moon, Ganymede. This close pass was performed as part of the orbiter’s thirty-fourth orbit of the gas giant (Perijove 34), which saw the probe come within 50,109 km (31,136 mi) of the moon’s surface. The mission team took this opportunity to capture images of Ganymede’s using Juno’s Jovian Infrared Auroral Mapper (JIRAM).

In this series we are exploring the weird and wonderful world of astronomy jargon! Hang on to your magnetic hats, because today’s topic is magnetars!

Once again, things are gearing up at SpaceX’s South Texas Launch Facility, located just outside the village of Boca Chica, Texas. In recent weeks, the aerospace community has been abuzz about the rollout and Static Fire test of the Super Heavy Booster 3 (B3) prototype. This was the first time a booster was tested, which will be responsible for launching the Starship to space in the near future. Since then, things have only ramped up some more.

The only known life in the universe lives on a mid-size rocky planet that orbits a mid-size yellow star. That makes our planet a bit unusual. While small rocky planets are common in the galaxy, yellow stars are not. Small red dwarf stars are much more typical, making up about 75% of the stars in the Milky Way. This is why most of the potentially habitable exoplanets we’ve discovered orbit red dwarfs.

Ah, the majestic dung beetle. The pinnacle of evolution. In all seriousness, these little critters are incredibly sophisticated navigators who have, for millennia, used the night sky to guide them about their business. But light pollution is making their lives more difficult by limiting their ability to navigate by the stars. Other nocturnal creatures, including some birds and moths, may be facing similar challenges.

According to the most widely accepted theories, evolutionary biologists assert that life on Earth began roughly 4 billion years ago, beginning with single-celled bacteria and gradually giving way to more complex organisms. According to this same evolutionary timetable, the first complex organisms emerged during the Neoproterozoic era (ca. 800 million years ago), which took the form of fungi, algae, cyanobacteria, and sponges.

On July 28th, the International Space Station (ISS) suffered a mishap after a new Russian module (named Nauka) fired its thrusters just hours after arriving. As a result, the entire station was temporarily pushed out of position, forcibly delaying the Orbital Flight Test-2 (OFT-2) mission. This would have been Boeing’s CT-100 Starliner second attempt to rendezvous with the ISS as part of NASA’s Commercial Crew Program (CCP).

A sure-fire summer shower, the Perseid meteors are set to put on a spectacular show this year.

It’s a common reassurance made by adults to teens and adolescents who constantly face the threat of violence, cyberbullying, and ostracism: “It gets better.” Once you graduate, once you grow up and join the workforce, all the mistreatment and abuse will cease and people will appreciate you for who you are. All the hard work and perseverance you’ve shown over these many years will finally pay off.

When Longfellow wrote about “ships passing in the night” back in 1863, he probably wasn’t thinking about satellites passing near Venus.  He probably also wouldn’t have considered 575,000 km separation as “passing”, but on the scale of interplanetary exploration, it might as well be.  And passing is exactly what two satellites will be doing near Venus in the next few days – performing two flybys of the planet within 33 hours of each other.

Shadows have been known throughout history to be excellent hiding places.  They may even be hiding unexpected things off the Earth as well.  According to a new NASA study, there might be water that moves from shadow to shadow on the moon – even in daylight.

Tracking exoplanets is hard – especially when that exoplanet is so far away from its parent star that the normally used “transit” method of watching it dim the light of the star itself is ineffectual.  But it really helps if the planet is huge, and has its own infrared glow, no matter how far away from its star it might be.  At least those properties allowed a team of scientists from the University of Hawai’i to track a particular exoplanet called (and we’re not kidding) Coconuts-2b.

How do you track an asteroid that hit the Earth over 60 million years ago?  By using a combination of geology and computer simulations, at least according to a team of scientists from the Southwest Research Institute (SwRI).  Those methods might have let them solve a long-standing mystery of both archeology and astronomy – where did the asteroid that killed the dinosaurs come from?

Methods of movement for robotic explorers of other worlds have been as varied as the worlds themselves. Some missions have been simple landers, some rovers, and now there’s even been a helicopter flight on Mars.  But there is an unexplored hybrid mode of movement that will soon be coming to a Moon near you – hopping.  NASA just granted an additional $41.6 million to support development of a hopping lunar lander that will explore the inside of craters that are permanently in shadow.