Tuesday, October 22

NASA

Blue Origin racing to meet tight launch window for first New Glenn mission
NASA

Blue Origin racing to meet tight launch window for first New Glenn mission

WASHINGTON — While preparations for the first launch of Blue Origin’s New Shepard rocket are accelerating, the company acknowledges there is “lots to do” to get the vehicle ready to meet a narrow launch window next month. The company has highlighted several major milestones towards the inaugural launch of the vehicle from Launch Complex 36 at Cape Canaveral Space Force Station in Florida, currently scheduled for no earlier than Oct. 13. That included the arrival Sept. 4 of Jacklyn, the European-built ship that will serve as the landing platform for New Glenn’s first stage, at Port Canaveral. A day earlier, the company rolled out the second stage of the rocket to the launch pad in preparations for a static-fire test. “We’re looking forward to firing up those two BE-3Us on New Glenn...
March Equinox Welcomes ‘Astronomical’ Spring – NASA Blogs
NASA

March Equinox Welcomes ‘Astronomical’ Spring – NASA Blogs

by Lance D. Davis Did you know our planet has two types of seasons? They are meteorological and astronomical. What’s the difference? “Meteorological seasons” follow the changing of the calendar, month to month, and are based on the annual temperature cycle – seasonal temperature variations modified by fluctuations in the amount of solar radiation received by Earth’s surface over the course of a year. For instance, the meteorological season of spring begins each year on March 1 and will end on May 31. However, “astronomical” seasons happen because of the tilt of Earth’s axis (with respect to the Sun-Earth plane), and our planet’s position during its orbit around the Sun. An illustration of the March (spring) and September (fall or autumn) equinoxes. During the equinoxes, both hemispheres...
Why Do Spacecraft Have Twin Parts?
NASA

Why Do Spacecraft Have Twin Parts?

Nearly 100 years ago, astronomer Bernard Lyot invented the coronagraph – a device that made it possible to recreate a total solar eclipse by blocking the Sun’s light. That helped scientists study the Sun’s corona, which is the outermost part of our star’s atmosphere that’s usually hidden by bright light from its surface.Our Nancy Grace Roman Space Telescope, now under construction, will test out a much more advanced version of the same thing. Roman’s Coronagraph Instrument will use special masks to block the glare from host stars but allow the light from dimmer, orbiting planets to filter through. It will also have self-flexing mirrors that will measure and subtract starlight automatically.This glare-blocking prowess is important because planets can be billions of times dimmer than their h...
Experts warn U.S. falling behind in satellite imaging race: ‘We’ve gone backwards’
NASA

Experts warn U.S. falling behind in satellite imaging race: ‘We’ve gone backwards’

BETHESDA, Md. — The U.S. government’s support for the commercial remote sensing satellite industry is at a critical juncture amid growing military demand for real-time intelligence, industry experts said Aug. 27.  The commercial remote sensing satellite industry is expanding, but it’s still not equipped to meet evolving U.S. military needs for tactical intelligence, surveillance and reconnaissance (ISR), said David Gauthier, former head of commercial operations at the National Geospatial-Intelligence Agency (NGA). Tactical ISR refers to the immediate collection and analysis of data to inform military operations on the battlefield. This intelligence is crucial for decision making during to dynamic situations.  Speaking at the AFCEA-INSA Intelligence and National Security S...
NASA

IXPE Checks Out X-rays from Extreme Objects – NASA Blogs

NASA’s Imaging X-ray Polarimetry Explorer (IXPE) mission, a joint effort with the Italian Space Agency, has returned data that no other spacecraft has obtained before from a few extreme cosmic objects. NASA’s Imaging X-ray Polarimetry Explorer (IXPE) Launched in December 2021, IXPE has detected polarized X-rays from three of its first six targets. Polarized X-rays carry unique details about where the light comes from and what it passes through. By combining these details with measurements of X-rays’ energy and how they change over time, we get a fuller picture of an object and how it works. Prior to IXPE, the only cosmic object with polarized X-ray measurements was the Crab Nebula, the wreckage of a massive, exploded star whose light swept past Earth nearly 1,000 years ago. In these new...