Studying the creation and evolution of sulfur-containing compounds in outer space is essential for understanding interstellar chemistry. CS2 is believed to be the most important…
New observations with the European Southern Observatory’s Very Large Telescope (ESO’s VLT) indicate that the rogue comet 2I/Borisov, which is only the second and most…
In early 2016, an icy visitor from the edge of our solar system hurtled past Earth. It briefly became visible to stargazers as Comet Catalina…
Comet Comes in from the Cold and Finds an Off-Ramp on Its Sunward Journey Long road trips can be tedious and boring. That’s why many…
New theory explains possible origin of the Armageddon-causing object. It forever changed history when it crashed into Earth about 66 million years ago. The Chicxulub…
It was tens of miles wide and forever changed history when it crashed into Earth about 66 million years ago. The Chicxulub impactor, as it’s…
When scientists downlinked data from Parker Solar Probe’s sixth orbit, there was a small, bright surprise waiting for them: the spacecraft’s first observation of a…
As Chile and Argentina witnessed the total solar eclipse on December 14, 2020, unbeknownst to skywatchers, a little tiny speck was flying past the Sun…
Researchers have discovered a new superhighway network to travel through the Solar System much faster than was previously possible. Such routes can drive comets and…
A unique stage of planetary system evolution has been imaged by astronomers, showing fast-moving carbon monoxide gas flowing away from a star system over 400…
An international study led by the University of Turku discovered phosphorus and fluorine in solid dust particles collected from a comet. The finding indicates that…
ESA’s Rosetta mission discovers unique aurora at Comet 67P/Churyumov-Gerasimenko. Data from Southwest Research Institute-led instruments aboard ESA’s Rosetta spacecraft have helped reveal auroral emissions in…
A study of comet motions indicates that the Solar System has a second alignment plane. Analytical investigation of the orbits of long-period comets shows that…
First-ever measurements provide evidence that extremely cold liquid water exists in two distinct structures that co-exist and vary in proportion dependent on temperature. Supercooled water…
An atmospheric light show previously relegated to planets and Jupiter moons is found on comet using data from ESA’s Rosetta spacecraft. Data from NASA instruments…
In the aurora borealis on Earth, electrically charged particles of the solar wind move along the Earth’s magnetic field. At high latitudes, these strike nitrogen…
A permeable heart with a hardened facade — the resting place of Rosetta’s lander on Comet 67P/Churyumov-Gerasimenko is revealing more about the interior of the…
NASA Hubble Space Telescope images of comet NEOWISE, taken on August 8, zero in on the visitor’s coma, the gossamer shell of gas and dust…