For decades, we have seen Mars as a desolate landscape devoid of any signs of life. Attempt to identify ways of growing plants and food on the red planet have focussed on greenhouse like structures to enable plants to survive, that is, until now! A desert moss called ‘Syntrichia caninervis’ has been identified and it can grown in extreme environments like Antarctica and the Mojave Desert. A new study revealed the moss can survive Mars-like environments too including low temperatures, high levels of radiation and drought.
Continue reading “The Rugged Desert Moss Best Equipped to Survive on Mars”Mapping the Milky Way’s Dark Matter Halo
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Anytime astronomers talk of mapping the Milky Way I am always reminded how tricky the study of the Universe can be. After all, we live inside the Milky Way and working out what it looks like or mapping it from the inside is not the easiest of missions. It’s one thing to map the visible matter but mapping the dark matter is even harder. Challenges aside, a team of astronomers think they have managed to map the dark matter halo surrounding our Galaxy using Cepheid Variable stars and data from Gaia.
Continue reading “Mapping the Milky Way’s Dark Matter Halo”Ammonites Were Doing Fine Until the Asteroid Hit
I must confess, I think asteroids and I think of movies like Deep Impact or Armageddon! Scientists think that an asteroid like the ones that appeared in the Hollywood blockbusters struck Mexico 66 million years ago and led to the extinction of the dinosaurs. It now seems they may not have been the only ones that were wiped from our planet. Ammonites are marine mollusks that flourished for 350 million years but they were wiped out too. Some research suggests they were struggling in North America but thriving in other parts of the world.
Continue reading “Ammonites Were Doing Fine Until the Asteroid Hit”What’s Next for the Event Horizon Telescope? Twelve Possible New Targets
Both the Milky Way and a galaxy known as M87 have supermassive black holes at their core. These are the two largest black holes we know about and the Event Horizon Telescope has just captured stunning images of their event horizons. A new paper looks at what we might expect from a next generation EHT and highlights twelve targets that should be top of the list.
Continue reading “What’s Next for the Event Horizon Telescope? Twelve Possible New Targets”Merging Galaxies Make for Explosive Star Formation
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The Gemini Observatory has unveiled a striking new image that shows star formation within the irregular galaxy NGC 4449. This galaxy is categorised as a “Magellanic-type” galaxy due to its similarities with the Magellanic Clouds, although it is smaller in size. Surrounding NGC 4449 is a halo of smaller dwarf galaxies, two of which are currently merging with it. This merger is causing clouds of gas to collide, fuelling the surge in star formation observed in NGC 4449.
Continue reading “Merging Galaxies Make for Explosive Star Formation”NASA Releases a New 3D Animation of the Lunar Gateway
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To get to the Moon, NASA is building a Lunar Gateway in orbit to facilitate easier access to the Moon. With construction beginning in 2028 as part of Artemis IV there will be an ongoing programme of enhancements and additions. NASA has now released a fabulous new 3D animation of the Lunar Gateway to showcase what the final Gateway will look like. It includes modules from partner nations and an Orion lunar landers dock to carry astronauts.
Continue reading “NASA Releases a New 3D Animation of the Lunar Gateway”Growing Habitats and Furniture in Space Out of Mushrooms
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Over the years we have often seen astronauts gently and deftly moving structures into place with their bare hands. Thinks are easy to move in space but getting them there is slightly more tricky and costly. A new piece of research has explored the possibility of growing structures in space based on food substrates. NASA has now awarded a grant to a proposal to investigate further growing structures using fungal mycelial composites, that’s mushrooms to you and I.
Continue reading “Growing Habitats and Furniture in Space Out of Mushrooms”That’s No Planet. Detecting Transiting Megastructures
One of the easiest ways to find exoplanets is using the transit method. It relies upon monitoring the brightness of a star which will then dim as a planet passes in front of it. It is of course possible that other objects could pass between us and a star; perhaps binary planets, tidally distorted planets, exocomets and, ready for it…. alien megastructures! A transit simulator has been created by a team of researchers and it can predict the brightness change from different transiting objects, even Dyson Swarms in construction.
Continue reading “That’s No Planet. Detecting Transiting Megastructures”Fly Through the Pillars of Creation in this New Visualisation Made from Webb and Hubble Data
I remember April 1995 very well. It was the month that the stunning and iconic image that has been called ‘Pillars of Creation’ was released. It was taken by the Hubble Space Telescope but now the James Webb Telescope is getting in on the act. Webb snapped images of the Eagle Nebula (home to the ‘pillars’) early on but now astronomers have combined the data form Hubble and Webb to create an amazing 3D animation flight through the nebula.
Continue reading “Fly Through the Pillars of Creation in this New Visualisation Made from Webb and Hubble Data”Saturn’s Energy is Out of Balance
Earth releases about as much energy out into space as it absorbs, arriving at a thermal equilibrium. This means it will reach an average temperature as is the case with most planets. Saturn however, is a little different as recent observations show the planet’s energy is out of balance. It seems that in addition to the energy it receives from the Sun, there must also be an internal source of heat, perhaps driven by its highly elliptical orbit.
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