Johns Hopkins University (JHU) continues to pad its space community résumé with their interactive map, “The map of the observable Universe”, that takes viewers on a 13.7-billion-year-old tour of the cosmos from the present to the moments after the Big Bang. While JHU is responsible for creating the site, additional contributions were made by NASA, the European Space Agency, the National Science Foundation, and the Sloan Foundation.
According to the Standard Model of Particle Physics, the Universe is governed by four fundamental forces: electromagnetism, the weak nuclear force, the strong nuclear force, and gravity. Whereas the first three are described by Quantum Mechanics, gravity is described by Einstein’s Theory of General Relativity. Surprisingly, gravity is the one that presents the biggest challenges to physicists. While the theory accurately describes how gravity works for planets, stars, galaxies, and clusters, it does not apply perfectly at all scales.
The Orion spacecraft made its first close flyby of the Moon on Monday, November 21, coming as close as 81 statute miles (130 km) from the lunar surface. As the Artemis 1 mission’s uncrewed spacecraft flew past the far side of the Moon, Orion’s orbital maneuvering system engine fired for 2 minutes and 30 seconds to successfully put the capsule into the desired orbit for the mission, called a distant retrograde orbit around the Moon.
The process of star birth begins in a shroud of gas and dust. Hubble Space Telescope (HST) excels in showing detailed views of these stellar crêches because there’s still a lot to learn about them. Its latest image shows an object called a “dense core”, where a stellar embryo could already exist.
We’ve reported in the past about the Venus Life Finder (VLF) mission, which is currently in the proposal stage but could potentially one day explore the Venusian clouds for signs of life. What exactly that life would look like is anyone’s guess. Therefore, the instrumentation the mission will use to find that life will be critical. Enter Fluid-Screen (FS), a technology developed by a start-up company spun out of Yale by Dr. Monika Weber. It could potentially directly detect life in the Venusian atmosphere – if only it could deal with the sulfuric acid.
Is there anything good about volcanoes? They can be violent, dangerous, and unpredictable. For modern humans, volcanoes are mostly an inconvenience, sometimes an intriguing visual display, and occasionally deadly.
Our galaxy’s stellar halo is giving astronomers some new food for thought. It turns out everyone thought the halo was spherical. But, it’s not. That’s news to everyone who said it was spherical. According to a new measurement done by a team at Harvard-Smithsonian Center for Astrophysics, it has a tilted, oblong football shape. This all tells astronomers an interesting tale about our galaxy’s ancient history.
As we’ve reported here more than a few times – space debris is becoming more and more of a real problem. We’re not quite at Kessler syndrome levels yet, but with the increased interest in getting things into space, there is a real possibility that might happen in the not-too-distant future. Plenty of potential solutions have been put forward to deal with the problem, but they all face a similar problem at the first step – how to track the debris they’re attempting to eliminate. Enter a new idea from researchers in Iran – using a novel type of radar to detect and track space debris before it becomes a danger.
Japan and Germany have a history of collaboration in scientific and technological endeavours. The countries have a Joint Committee on Cooperation in Science Technology that has met many times over the decades. Both countries have advanced, powerful economies and sophisticated technological know-how, so it makes sense they’d collaborate on scientific activities.
What’s the most exciting thing about the James Webb Space Telescope? The stunning images? The completion of its torturous path from concept to launch?
Micrometeoroid strikes are an unavoidable part of operating a spacecraft. But after the James Webb Space Telescope (JWST) was hit with a larger than expected piece of space dust earlier this year, engineers are making changes to the way the telescope will be pointed in an attempt to avoid excess or larger impacts from space dust.
GPS and the world’s other global positioning systems all have one very limiting disadvantage: they’re global to only one world. There is no equivalent to the precise geolocation features these systems offer for any other body in our solar system. Recently, there has been an increased focus on Lunar missions, but no way for anything on the Lunar surface to know precisely where it is. Enter the European Space Agency and their Moonlight initiative, which was showcased in a recent video on their YouTube channel.
As it heads for the moon, NASA’s Orion space capsule is sending back snapshots of Earth that evoke the “blue marble” pictures taken by Apollo astronauts five decades earlier.
After orbiting Mars for eight long years, NASA’s Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft observed an extraordinary duo of auroras around the Red Planet that resulted from solar storms emanating from the Sun only a few days earlier on August 27. This observation is extraordinary since Mars lacks a global magnetic field so the solar flares must have been very powerful for MAVEN to detect them.
Even though there’s no firm date for a Mars sample return mission, the Perseverance rover is busy collecting rock samples and caching them for retrieval. We’ve known of the future Mars sample return mission for a while now, and as time goes on, we’re learning more details.
Climate change is the single greatest threat facing our planet today. Thanks to excess carbon emissions that have been growing steadily since the mid-20th century, average temperatures continue to rise worldwide. This leads to feedback mechanisms, such as rising sea levels, extreme weather, drought, wildfires, and glacial melting. This includes the Arctic Ice Pack, the East Antarctic glacier, and the Greenland Ice Sheet (GrIS), which are rapidly melting and increasing global sea levels.
Earth is a strange world. A warm, rocky planet covered with oceans of liquid water. This strangeness is central to life on Earth, but it has been a longstanding puzzle for astronomers. Just why is our planet wet while other terrestrial worlds are dry? Where did all of Earth’s water come from?
It really, finally, actually happened. The long-waited Space Launch System (SLS) rocket carrying the Orion capsule launched successfully and is now on its way to the Moon. After years of delays — and then two scrubbed launch attempts and a rollback of the rocket to the Vehicle Assembly Building this fall — this is the first time in 50 years that a human capable spacecraft is going to the Moon. In a way, it is fitting that Artemis launched in the dark, as the last human-rated spacecraft that launched to the Moon – Apollo 17 – also had liftoff at night.
About a decade ago, the prospect of “asteroid mining” saw a massive surge in interest. This was due largely to the rise of the commercial space sector and the belief that harvesting resources from space would soon become a reality. What had been the stuff of science fiction and futurist predictions was now being talked about seriously in the business sector, with many claiming that the future of resource exploitation and manufacturing lay in space. Since then, there’s been a bit of a cooling off as these hopes failed to materialize in the expected timeframe.
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