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Category: satellites – Page 15

Lightning strikes kick off a game of electron pinball in space

When lightning strikes, the electrons come pouring down.

In a new study, researchers at CU Boulder led by an undergraduate student have discovered a new link between weather on Earth and weather in space. The group used satellite data to show that lightning storms on our planet can knock especially high-energy, or “extra-hot,” electrons out of the inner radiation belt—a region of space filled with charged particles that surrounds Earth like an inner tube.

The team’s results could help satellites and even astronauts avoid dangerous radiation in space. This is one kind of downpour you don’t want to get caught in, said lead author Max Feinland.

Japan-made world’s first wooden satellite blasts off into space

The world’s first wooden satellite, built by Japanese researchers, was launched into space on Tuesday, in an early test of using timber in lunar and Mars exploration.

LignoSat, developed by Kyoto University and homebuilder Sumitomo Forestry, will be flown to the International Space Station on a SpaceX mission, and later released into orbit about 400 kilometres above the Earth.

Named after the Latin word for “wood”, the palm-sized LignoSat is tasked to demonstrate the cosmic potential of the renewable material as humans explore living in space.

Australia abandons $5 billion geostationary satellite program to explore ‘multi-orbit’ options

WASHINGTON — The Australian Department of Defence announced the cancellation of its JP9102 military satellite program, an estimated $5 billion project awarded to Lockheed Martin just 18 months ago, citing shifts in satellite technology and the market’s pivot toward multi-orbit space communications.

The cancellation of Australia’s JP9102 satellite program is yet another sign of the disruptive impact that low Earth orbit space internet services, led by the rapid growth of SpaceX’s Starlink, are having on the traditional satellite communications industry and government procurement models.

JP9102, or Defence Joint Project 9,102, was launched in 2021 with plans to develop between three to five geostationary satellites and ground systems, marking one of Australia’s most ambitious space infrastructure ventures.

International SWOT Satellite Spots Planet-Rumbling Greenland Tsunami

Data from space shows water tilting up toward the north side of the Dickson Fjord as it sloshed from south to north and back every 90 seconds for nine days after a 2023 rockslide.

The international Surface Water and Ocean Topography (SWOT) satellite mission, a collaboration between NASA and France’s CNES (Centre National d’Études Spatiales), detected the unique contours of a tsunami that sloshed within the steep walls of a fjord in Greenland in September 2023. Triggered by a massive rockslide, the tsunami generated a seismic rumble that reverberated around the world for nine days. An international research team that included seismologists, geophysicists, and oceanographers recently reported on the event after a year of analyzing data.

The SWOT satellite collected water elevation measurements in Dickson Fjord on Sept. 17, 2023, the day after the initial rockslide and tsunami. The data was compared with measurements made under normal conditions a few weeks prior, on Aug. 6, 2023.

Lockheed Martin completes acquisition of smallsat manufacturer Terran Orbital

WASHINGTON — Lockheed Martin Corp announced Oct. 30 it has completed the acquisition of small satellite manufacturer Terran Orbital. The approximately $450 million acquisition deal deepens Lockheed Martin’s foothold in the commercial satellite sector and culminates a partnership that began in 2017.

The acquisition positions Lockheed to leverage Terran’s expertise in low-cost satellite production for both military and commercial ventures. Lockheed Martin stressed that Terran Orbital, now rebranded as “Terran Orbital, a Lockheed Martin Company,” will continue to operate as a merchant supplier for the broader space industry.

The completed acquisition caps Lockheed Martin’s years-long relationship with Terran Orbital, formerly Tyvak Nano-Satellite Systems. The smallsat specialist, founded in 2011, initially focused on nanosatellites and cubesats, but transitioned to building larger satellite platforms after it rebranded in 2022. That shift in focus followed Terran Orbital’s public listing through a special purpose acquisition company (SPAC) merger, which aimed to accelerate its commercial growth.

SpaceX nighttime rocket launch: When is liftoff, where to see it in Vero Beach, Sebastian

Halloween is on Thursday, Oct. 31 — but parts of the Treasure Coast may get a nice treat the night before.

SpaceX is targeting Wednesday, Oct. 30, to launch another payload of Starlink broadband satellites into low-Earth orbit from Cape Canaveral Space Force Station. Depending on weather and visibility, parts of Indian River County might see a nice streak in the sky.

Below are suggestions on where to watch the rocket launch from this area and other things to know. If there are changes to the launch schedule, this story will be updated.

Titan’s Atmosphere and Climate: Lessons from an Alien World

Dr. Lauren Schurmeier: “The methane clathrate crust warms Titan’s interior and causes surprisingly rapid topographic relaxation, which results in crater shallowing at a rate that is close to that of fast-moving warm glaciers on Earth.”

How does Saturn’s largest moon, Titan, have such a methane-rich atmosphere? This is what a recent study published in The Planetary Science Journal hopes to address as a team of researchers investigated how methane that resides with Titan’s crust could be responsible for the lack of depth in Titan’s impact craters, which could explain why Titan’s atmosphere has so much methane, as well. This study holds the potential to help researchers better understand the formation and evolution of Titan and whether it could host life as we know it.

For the study, the researchers used computer models to simulate the formation and evolution of impact craters on Titan, of which only approximately 90 have been identified via satellite imagery from NASA’s Cassini spacecraft.

“This was very surprising because, based on other moons, we expect to see many more impact craters on the surface and craters that are much deeper than what we observe on Titan,” said Dr. Lauren Schurmeier, who is a research associate in the Hawai‘i Institute of Geophysics and Planetology (HIGP) and lead author of the study. “We realized something unique to Titan must be making them become shallower and disappear relatively quickly.”

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