Universe Today

September 9, 2022September 9, 2022 by Nancy Atkinson

Insanely High-Resolution Images of the Sun Show its Chromosphere in Vivid Detail

The first images of the chromosphere – the area of the Sun’s atmosphere above the surface – taken with the Daniel K. Inouye Solar Telescope on June 3rd, 2022. Credit: NSO/AURA/NSF.

New images of the Sun’s chromosphere – the lower region of the solar atmosphere — have been released, and to say they are ‘stellar’ is an understatement. Simply, they are stunning. The high-resolution images were taken with the now-fully-operational Daniel K. Inouye Solar Telescope, located on the summit of Haleakala, Maui, in Hawai‘i. Scientists say the new observatory — with its large 4-meter (13-ft) primary mirror — will enable a new era of solar science, and provide a leap forward in understanding the Sun and its impacts on our planet.

September 9, 2022September 9, 2022 by Matt Williams

Astronomers Create the First 3D Model of a Planet Orbiting in a Binary System

Artist's conception of an exoplanet about twice the size of Jupiter, the star it orbits, and the binary companion in the distance. Credit: Sophia Dagnello, NRAO/AUI/NSF.

To date, 5,084 extrasolar planets have been confirmed in 3,811 planetary systems, with another 8,912 candidates awaiting confirmation. These discoveries have provided astronomers with a detailed sampling of the types of planets that exist in our Universe, ranging from gas giants several times the size of Jupiter to smaller, rocky bodies like Earth. So far, the vast majority of these have been discovered using indirect methods – like the Transit Method (Transit Photometry) and the Radial Velocity Method (Doppler Spectroscopy) – while the remainder has been detected using various other means.

In a recent study, an international team of astronomers used the National Science Foundation’s (NSF) Very Long Baseline Array (VLBA) network to detect a Jupiter-like planet orbiting in a binary system (GJ 896AB) located about 20 light-years from Earth. Using a method known as Astrometry, the team managed to detect this planet by the “wobble” it makes as it orbits the larger of the system’s two stars. Moreover, this method allowed the team to create the first 3-dimensional architecture of a binary system and a planet that orbits one of its stars.

September 9, 2022September 9, 2022 by David Dickinson

BlueWalker-3 Satellite Launches This Weekend, May Be Bright

An artist's conception of BlueWalker-3 in space. Credit: AST SpaceMobile

A new satellite launching this weekend BlueWalker-3 could be conspicuously bright once it’s unfurled in orbit.

A routine SpaceX Starlink launch this coming weekend carries an unusual passenger, that you many be able to easily see gliding through the increasingly crowded night sky.

September 9, 2022September 9, 2022 by Scott Alan Johnston

We Still Have no Idea if it's Safe to be Pregnant in Space

Can humans reproduce in space? The short answer is that we don’t know. The long answer is maybe, but there are significant barriers to overcome to make zero-gravity pregnancy safe, and research into the subject is only just beginning.

September 8, 2022September 15, 2022 by Anton Pozdnyakov

There’s Still Hope for SLS to Launch in September

After two scrubs for Artemis I, there was serious concerns there will be no further launch attempts at least until mid-October. But it looks like we might see the maiden flight of SLS in September after all.

September 8, 2022September 8, 2022 by Andy Tomaswick

The Saturn V was Incomprehensibly Loud. Like Thousands of jet Aircraft Taking off Together

What’s the loudest sound you’ve ever heard? Many people will say an aircraft engine unless they are lucky enough to have attended a rocket launch. And if there was one rocket that was louder than them all, it was the Saturn V, the behemoth that blasted the Apollo astronauts to the moon. But just how loud was it?

September 8, 2022September 8, 2022 by Matt Williams

Bouncy Castles on the Moon. Inflated Habitats Might be the Best Way to Get Started on a Lunar Base

In this decade, multiple space agencies will send astronauts to the Moon for the first time since the Apollo Era. In addition to NASA, the ESA, China, and Roscosmos, commercial space entities like SpaceX and Blue Origin are hoping to conduct regular missions in support of human exploration while also mounting their own private ventures. In time, this activity could result in the creation of permanent infrastructure, a regular human presence, and the emergence of a lunar economy. Nevertheless, there are many questions about how humans will live in lunar conditions and what type of facilities will be needed.

To this end, the Austrian-based inflatable structures specialist Pneumocell recently conducted a study to determine if lightweight prefabricated structures would be a suitable option. According to this study, a series of donut-shaped inflatable structures could be transported to the Moon at a low cost, where they would then be inflated. The habitats would be partially buried beneath the lunar regolith and surrounded by solar mirrors that could direct sunlight into their greenhouses. This “Inflatable Moon Habitat” offers a cost-effective and highly self-sufficient means of establishing a foothold on the Moon.

September 8, 2022September 13, 2022 by Seth Lockman

Socks, The Final Frontier

ISS026-E-011334 (18 Dec. 2010) --- NASA astronaut Catherine (Cady) Coleman, Expedition 26 flight engineer, is pictured with a stowage container and its contents in the Harmony node of the International Space Station.

What is the greatest challenge facing humans as we prepare for the first crewed missions to Mars? Solar and cosmic radiation? Atrophying bone and muscle? Growing food? How about laundry? It’s strange but true, right now we don’t have a way to clean laundry in space.

September 8, 2022September 8, 2022 by Nancy Atkinson

Beautiful Dunes on Mars, Sculpted by Swirling Winds

Wind-sculpted dunes on Mars. Credit: NASA/JPL-Caltech/UArizona.

This interesting image from the HiRISE camera on the Mars Reconnaissance Orbiter shows a field of fascinating dunes called barchan dunes. These dunes have formed along a cliff in Chasma Boreale, in the North Pole of Mars.

September 8, 2022September 8, 2022 by Alan Boyle

DNA From Star Trek’s Original Doctor Will Ride to the Final Frontier

Star Trek actors at Enterprise rollout — In 1976, the crew of the original "Star Trek" TV show attended the rollout of the prototype space shuttle Enterprise in California. In the front row, from left: NASA Administrator James Fletcher, DeForest Kelley ("Bones"), George Takei ("Sulu"), Nichelle Nichols ("Uhura"), Leonard Nimoy ("Spock"), series creator Gene Roddenberry and Walter Koenig ("Chekov"). Photo Credit: NASA

A memorial spaceflight paying tribute to the cast and crew of the original “Star Trek” TV show has just added another star to the passenger list.

DeForest Kelley — who played Leonard “Bones” McCoy, the Starship Enterprise’s physician — will be represented by a thimble-sized sample of DNA on next year’s “Enterprise Flight.” Kelley passed away in 1999 at the age of 79, but the DNA was extracted from a hair sample that was preserved after his death.