Space News & Blog Articles

Planets aren’t the only celestial objects with moons – asteroids can have them too. They are usually other, smaller asteroids in orbit around a larger central one.  Now, a team of Thai and French astronomers found an asteroid system with three satellites.  The new four-body system makes complex gravitational problems like the three-body problem look simple by comparison.

The global climate is warming, and Earth’s polar regions are feeling the effects. A new study of the South Orkney Islands shows that the region has warmed significantly since the 1950s. The rise in warming in the South Orkneys exceeds the overall global warming.

Earlier this week the Sun erupted with a huge explosion, blasting solar particles millions of kilometers into space. The team for the ESA/NASA Solar Orbiter spacecraft says the blast is the largest solar prominence eruption ever observed in a single image together with the full solar disc.

NASA’s Transiting Exoplanet Survey Satellite (TESS) has found over 5000 candidate exoplanet candidates, and 197 confirmed exoplanets since its mission began in late 2018. TESS is good at finding exoplanets, but the spacecraft is a powerful scientific platform, and it’s made other discoveries, too. Scientists working with TESS recently announced 97 quadruple star candidates, nearly doubling the number of known quadruple systems.

Peptides are one of the smallest biomolecules and are one of life’s critical building blocks. New research shows that they could form on the surfaces of icy grains in space. This discovery lends credence to the idea that meteoroids, asteroids, or comets could have given life on Earth a kick start by crashing into the planet and delivering biological building blocks.

It’s first light for one of the newest space observatories! The Imaging X-Ray Polarimetry Explorer team has released their first image, taken after a month-long commissioning phase for the spacecraft. And it’s a beauty.

NASA and China plan to mount crewed missions to Mars in the next decade. While this represents a tremendous leap in terms of space exploration, it also presents significant logistical and technological challenges. For starters, missions can only launch for Mars every 26 months when our two planets are at the closest points in their orbit to each other (during an “Opposition“). Using current technology, it would take six to nine months to transit from Earth to Mars.

Most stars will end their lives as white dwarfs. White dwarfs are the remnant cores of once-luminous stars like our Sun, but they’ve left their lives of fusion behind and no longer generate heat. They’re destined to glow with only their residual energy for billions of years before they eventually fade to black.

Tech billionaire Jared Isaacman who flew to space on the Inspiration4 mission last year has announced another flight, with the aim of conducting the first-ever commercial spacewalk.

Cooling things down in space is trickier than it might sound.  But that is exactly the process the James Webb telescope is going through right now.  Getting down to cryogenic temperature is imperative for its infrared imaging systems to work correctly.  While the telescope has already started, it will be another few weeks before the process is complete, and it’s ready to start capturing its first groundbreaking infrared images of the universe.

Concrete is not the first material one usually thinks of when exploring space.  Nor is it the focus of much cutting-edge research.  The most common building material has been used by humanity for thousands of years.  But surprisingly, little is still known about some of its properties, due in no small part to the limitations of the environments it can be tested in.  Now, this most ubiquitous of materials will be tested in a new environment – the microgravity aboard the International Space Station.

In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll feel balanced with today’s topic: hydrostatic equilibrium!

Methane is one of the most important greenhouse gases, despite the overwhelming interest in carbon dioxide emissions as the primary source of climate change.  It is hard to track, though, as its sources can range from leaking chemical and gas pipelines to literal farm fields.  Now an energy analytics company has a system they believe can track otherwise undocumented methane emissions in a way that could prove helpful in eliminating them altogether.

Last month, astronomers reported that a discarded upper stage of a Falcon 9 rocket, launched 7 years ago, was on a collision course with the Moon. The rocket in question carried NASA’s Deep Space Climate Observatory (DSCOVR) to the Sun-Earth L1 Lagrange point, where the still-operating observatory provides advance warning on solar wind activities. The leftover rocket stage, meanwhile, became a floating piece of space junk orbiting the Sun. Its ultimate fate was unknown, until last month, when astronomer Bill Gray predicted that it was bound for an impact with the Moon sometime on March 4th, 2022.

Are there civilizations somewhere else in the Universe? Somewhere else in the Milky Way? That’s one of our overarching questions, and an answer in the affirmative would be profound.

When our Sun dies, the Earth will die with it. As a star of middling mass, the Sun will end its life by swelling into a red giant star. After a last cosmic moment of brilliance, the remnant core of the Sun will collapse into a white dwarf. This won’t occur for billions of years, but the mass and composition of the Sun means a white dwarf is its inevitable fate.

Where did Earth’s water come from? That’s one of the most compelling questions in the ongoing effort to understand life’s emergence. Earth’s inner solar system location was too hot for water to condense onto the primordial Earth. The prevailing view is that asteroids and comets brought water to Earth from regions of the Solar System beyond the frost line.

In 1929 astronomer Edwin Hubble made a remarkable measurement. Earlier in that decade, he had discovered that the Andromeda Nebula was not a nebula at all, but an entirely different galaxy completely separated from the Milky Way by millions of light-years of cold, hard nothing. He then expanded that initial discovery and began compiling a catalog of galaxies and their distances from us.

SpaceX’s entire business model is based on the reusability of its rockets.  That business model has proven viable time and time again as boosters continue to land safely only to be reused later.  But as the rockets they’re using get bigger and bigger, the harder and harder it will get for them to land directly on the ground, as models they’ve completed so far have.  So for its SuperHeavy Booster, designed to launch its Starship craft into orbit, SpaceX has to develop a new way of capturing the rockets without damaging them. Its head, Elon Musk, has shared a Twitter video showing how it will do just that.

If you want a handy definition of what’s “inside” the solar system, then the heliosphere is your best bet. This is a region dominated by particles constantly emanating from the Sun, and the Sun’s own magnetic field. This region extends out to millions of kilometers, well past the orbit of Pluto.

Scientists from the James Webb Space Telescope shared the first images from space taken by the new telescope. Since the 18-segment mirror is in the early stages of being aligned, the first image is understandably blurry and a bit jumbled. But its exactly what the team wanted to see.