space program has shattered in orbit, scattering dozens of new pieces of debris into a path already congested with active satellites. The disintegration of the Meteor 2-7 weather satellite, originally launched in 1981, marks the second time the aging...

“Nello Carrara” of Italy’s National Research Council began their research by questioning if the dense population of satellites and rocket fragments in high-altitude orbits might intersect with the asteroid’s path. Their findings were unexpected. The...

Aperture Radar The sensitivity of this encounter is heightened by ICEYE’s role in global security. The company’s satellites utilize synthetic aperture radar (SAR), which emits radar pulses to penetrate cloud cover and operate in total darkness. This...

from Earth at that specific juncture in their orbits. The encounter paired two of the solar system’s most significant satellites, each with vastly different profiles. Ganymede, the solar system’s largest moon, boasts a diameter of 5,268 kilometers...

through its use of SAR technology. Unlike optical cameras, which rely on ambient sunlight to capture imagery, radar satellites actively emit microwave pulses toward the surface and interpret the returning echoes. This methodology allows for clear data...

SED assignment depends heavily on optical colours which can misassign near-infrared flux. Some procedures used to extend satellites beyond virial radii generated spurious features in cluster outskirts, a problem the team plans to correct in future...

the flat curve points to a huge amount of unseen mass spread far beyond the luminous disk. Gravitational Effects on Satellites More evidence comes from objects orbiting the Milky Way. Satellite galaxies and globular clusters move as if they are bound by...

Zealand, with flight opportunities slated for early 2027. The partnership reflects NASA’s push to field agile, low‑cost satellites through commercial launch arrangements. Rocket Lab to Deploy Paired Solar and Cloud‑Study Satellites In a NASA press...

and data analytics. Executive Chandana highlighted the growth trajectory, noting that “the demand for services enabled by satellites in space will only continue to grow, and that is where Skyroot’s opportunity lies.” The comment reflects a worldwide...

into a decaying spiral back toward the planet. The size of the moon plays a critical role in its ultimate fate. Heavier satellites accelerate this process, as they exert a stronger torque on the planet. According to the team’s models, a moon twice as...

increasingly hazardous as it fills with the remnants of past missions, ranging from discarded rocket stages to fragmented satellites. In Earth’s orbit, objects travel at staggering velocities, often reaching 17,500 miles per hour. At these speeds, even...

M101 (center box) of the projected positions of associated galaxies in a ∼400 × 400 kpc field. The confirmed M101 dwarf satellites are shown as blue stars. The kernel density estimate of the satellites is shown as the blue to white contour. The...

Using satellite data and ice flow physics, scientists have mapped Antarctica’s hidden landscape in unprecedented detail, revealing valleys, ridges, and rough terrain that reshape our understanding of ice sheet behavior and sea level rise. Antarctica is...

and the electrospray thrusters. This streamlined approach offers significant advantages for the next generation of small satellites. By reducing the overall footprint of the propulsion system, the design frees up valuable mass and volume for scientific...

because its 2029 trajectory will bring it within roughly 32,000 kilometres of our planet—closer than many geostationary satellites. Rather than treating the approach as a mere sky‑watching event, ESA plans to turn it into a scientific laboratory by...

to miss Earth by about 20,000 miles (32,000 kilometres) on 13 April 2029—closer than the orbit of many geostationary satellites and well within the view of both professional and amateur sky‑watchers. Preparing for the 2029 Flyby Since its discovery in...

surrounding Thwaites Glacier, the radar image penetrates snow and ice layers to reveal internal structures that optical satellites cannot detect, underscoring the value of space‑borne radar for polar science. Radar Eyes Reveal What Lies Beneath...

small moons. Implications and the Road Ahead If confirmed, this exosatellite could inaugurate a new subfield focused on satellites of objects that are not traditional planets. Studying such configurations may shed light on formation pathways for massive...

slated to skim past Earth on April 13, 2029, passing roughly 31,000 km above the surface—closer than many geostationary satellites. Updated orbital calculations confirm that the asteroid poses no impact threat during this encounter, overturning earlier...

in 2013, provided high‑resolution magnetic maps that clarified the core’s behavior after the 2010 shift. Operating three satellites equipped with ultra‑sensitive magnetometers, Swarm distinguished magnetic contributions from the core, crust, oceans,...