Astronomy

A team of researchers have found a surprisingly simple way to boost the sensitivity of gravitational wave detectors like LIGO. It’s surprisingly simple to, just point an ordinary thermal imaging camera at the mirrors themselves. The technique could improve LIGO's next upgrade by up to 31%, letting it detect neutron star collisions tens of millions of light years farther away, and is already being built into the design of its planned successor, Cosmic Explorer.

A new study presented at the Royal Astronomical Society's National Astronomy Meeting suggests that solar storms may warm the Martian lower atmosphere, but only when they strike during a major Martian dust storm. The discovery was accidental, emerging from a search for a different effect entirely, and hints that the weather system on Mars may be more tangled and interconnected than scientists previously assumed.

As the Pacific Ocean moves into an El Niño phase, scientists are monitoring changes in sea-surface temperature, but also sea-surface salinity – which is another key indicator of this phenomenon.

Measurements from satellites such as the European Space Agency's SMOS mission are revealing how freshwater and salt patterns shift across the Pacific as this year’s El Niño develops – offering a potential new pathway for early detection.

Confirming the existence of extraterrestrial intelligence via radio signals, also called technosignatures, is the cornerstone of radio astronomy. While humanity has been asking since time immemorial whether or not we’re alone in the universe, radio astronomers are at the frontlines trying to tirelessly answer this longstanding question. To accomplish this, they’ve traditionally focused on a specific radio frequency band called the “water hole”, which resides between 1.42 and 1.66 GHz. This is due to two water-forming molecules, hydrogen and hydroxyl, emitting these frequencies.

When astronomers talk about directly imaging an exoplanet that is orbiting a far away star, the analogy they most commonly go with is trying to spot a fireflight next to a massive search light. An Earth-like exoplanet is incredibly dim - usually between 100 million and 10 billion times fainter than its host star. Understandably, that makes them very difficult to see. But a new paper from Hyunsoo Choi of Hanyang University in South Korea and his co-authors, which is available in pre-print on arXiv, describes a theoretical solution - use a mix of smart computer algorithms and quantum physics.

Geostationary orbit (GEO) is arguably one of the most important orbital spaces we have. So it's critical that we keep it clear of debris that could destroy the valuable GPS, weather tracking, and communications satellites already in this orbit. Unfortunately, that is easier said than done; small pieces of debris at that altitude can slip past even our most sensitive sensors. But now, a new paper published in the Journal of Astronautical Sciences by James Blake and an international collaboration of researchers showcases how an advanced algorithm can help find tiny pieces of debris that would otherwise be missed by traditional surveys.

A strong foundation is key for any building construction, and this doesn’t just apply to construction on Earth. As humanity slowly expands throughout the many worlds of our solar system, and possibly beyond, understanding the planetary surfaces is key to constructing long-lasting habitats beyond Earth. Thus, it’s only natural this venture begins with our own Moon, which is the target of a permanent lunar south pole base by NASA. While the Moon is covered by a thin layer of dust, also called regolith, it’s vital for engineers to know the thickness of this regolith to know the safest locations to construct future lunar habitats and buildings.

Every year, thousands and thousands of satellites get launched into orbit around our planet. The result is an increasingly congested "space" above Earth populated by equipment that provides services to the surface. At the same time, these satellites affect ground-based astronomy research and create potential for damage when they eventually fall through Earth's atmosphere to the ground. In addition, near-Earth space hosts old rocket bodies and other materials left in space by past missions.

A new study from the Chinese Academy of Sciences (CAS) addresses the threat of debris in cislunar space, which could pose threats for future missions bound for the Moon.

The National Radio Astronomy Observatory has completed a new survey with the updated Karl G. Jansky Very Large Array (VLA) in New Mexico. It's called the VLASS, the Very Large Array Sky Survey, and it's the most detailed radio survey of the sky ever completed. The VLA used the power of its 28 movable dishes to complete the survey.

Planetary debris disks around white dwarfs appear to be more plentiful than thought. That's because some white dwarfs are magnetic, and those magnetic fields create patches of metallic debris near the stars' poles, where it's more difficult to detect. This leads to an underestimation of debris, something new research is trying to correct.

The extreme conditions of atomic bomb explosions create “uncontrolled microexperiments” that, in Hiroshima, forged a never-before-seen metallic alloy

Astronomers want to know how universal the initial mass fraction (IMF) of galaxies is. To do they that, they need to discern binary stars in other galaxies, a difficult task. Researchers used the JWST to study the Small Magellanic Cloud and determine how many binary stars are there, since they can confuse measurements of the IMF.

The only total solar eclipse of the year coincides with the Perseid meteor shower. Here's what you need to know to watch the eclipse.

The post Rare Total Solar Eclipse-Perseid Meteor Shower Double-Header August 12th appeared first on Sky & Telescope.

This illustration depicts charged particles from a solar storm stripping away charged particles of Mars' atmosphere, one of the processes of Martian atmosphere loss studied by NASA's MAVEN mission.

Many of these structures date to around C.E. 100–300, during the time of the Aquiry civilization, and may have been used for ceremonial purposes

A newly discovered change in ribosomal RNA makes protein production more precise, potentially safeguarding these cephalopods’ complex nervous systems