Watching the sun is dangerous work for a telescope. Solar instruments in space naturally degrade over time, bombarded by a constant stream of solar particles that can cause a film of material to adhere to the optics. Decades of research and engineering skill have improved protecting such optics, but one crucial solution is to regularly recalibrate the instruments to accommodate such changes.
In mid-May, the seventh calibration mission for an instrument on NASA’s Solar Dynamics Observatory, or SDO, will launch into space onboard a sounding rocket for a 15-minute flight. The instrument to be calibrated is called EVE, short for the EUV Variability Experiment, where EUV stands for extreme ultraviolet. EVE’s job is to observe the total energy output of the sun in EUV light waves. The calibration mission is scheduled to launch on May 21, 2015, on a Terrier-Black Brant suborbital sounding rocket around 3 pm EDT from White Sands Missile Range, New Mexico.
Two NASA and one European spacecraft, including NASA’s MAVEN mission—led by LASP—have gathered new information about the basic properties of a wayward comet that buzzed by Mars Oct. 19, directly detecting its effects on the Martian atmosphere.
Data from observations carried out by MAVEN, NASA’s Mars Reconnaissance Orbiter (MRO) and the European Space Agency’s Mars Express spacecraft revealed that debris from the comet, known officially as Comet C/2013 A1 Siding Spring, caused an intense meteor shower and added a new layer of ions, or charged particles, to the ionosphere. The ionosphere is an electrically charged region in the atmosphere that reaches from about 75 miles (120 kilometers) to several hundred miles above the Martian surface.
Using the observations, scientists were able to make a direct connection between the input of debris from the meteor shower to the subsequent formation of the transient layer of ions—the first time such an event has been observed on any planet, including Earth, said the MAVEN research team.
LASP kicks off a special year-long Public Lecture series to honor our 65th anniversary on October 11, 2013. Please join us! Speaker: Dr. Sam Durrance Date: Friday, October 11, 2013 Time: 6:00 PM; doors open for a reception at 5:15 PM Location: LSTB-A200 (map) Abstract: Riding a rocket into space, the exhilaration of zero-g, the… Read more »
The LASP-led Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has arrived in Florida to begin final preparations for launch this November. The spacecraft was shipped from Lockheed Martin Space Systems in Littleton, Colo., to the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center on Friday.
A multimillion dollar LASP instrument package to study space weather has passed its pre-installation testing and is ready to be incorporated onto a National Oceanic and Atmospheric Administration satellite for a 2015 launch.
A group of Longmont middle school students successfully sent a scientific balloon carrying edible treats into the sky last Saturday as an atmospheric physics experiment. Guided by LASP scientists and education/outreach staff, the Trail Ridge Middle School eighth grade Earth Explorers class launched a balloon platform carrying a container of Jell-O and a marshmallow into… Read more »
In recognition of their accomplishments and exceptional scientific contributions, two LASP scientists have been elected as fellows of the American Geophysical Union (AGU). Bruce Jakosky and Cora Randall have been recognized by their peers for their outstanding work in Earth and space sciences with an honor that is bestowed upon not more than 0.1% of the AGU membership annually.
In recognition of his accomplishments and groundbreaking insights in the field of atmospheric science, LASP scientist and CU-Boulder Professor Peter Pilewskie has been named a recipient of the prestigious Humboldt Research Award. Pilewskie has been at LASP since 2004, where he performs research on the effects of clouds and aerosols on solar energy in the Earth’s atmosphere. He is also a professor in the Department of Atmospheric & Oceanic Sciences and serves as the director of the collaborative LASP/NASA Goddard Sun-Climate Research Center.
NASA’s Upper Atmosphere Research Satellite (UARS), launched in September 1991 and deployed from the Space Shuttle Discovery (STS-48), is re-entering Earth’s atmosphere and will complete its decent on Friday, September 23. LASP designed and built the Solar Stellar Irradiance Comparison Experiment (SOLSTICE) on board UARS and operated the instrument after launch. Throughout 14 years of successful operations, SOLSTICE made precise measurements of the Sun’s ultraviolet and far ultraviolet spectral irradiance.
In recognition of his innovative work on the effects of aerosols on clouds and climate, the American Geophysical Union (AGU) has awarded LASP scientist Brian Toon the 2011 Revelle Medal. Toon has been at LASP since 1997, where his research is focused on radiative transfer, cloud physics, and atmospheric chemistry as well as the search for parallels between the Earth and the terrestrial planets.
The CU/LASP-led mission to Mars, devoted to understanding the Martian upper atmosphere, reached a major milestone last week when it successfully completed its Mission Critical Design Review (CDR) at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. An independent review board, comprised of reviewers from NASA and several external organizations, met from July 11-15 to validate the system design of the Mars Atmosphere and Volatile Evolution, or MAVEN, mission.
LASP atmospheric researchers Linnea Avallone and Lars Kalnajs are currently at McMurdo Station, Antarctica, where they are participating in the Concordiasi campaign, a French-led project to study the Antarctic “ozone hole” using instrumentation on long-duration, super-pressure balloons.
The discovery of noctilucent (night shining) clouds in 1885 revealed an atmosphere which extended far higher than expected. Since then, these clouds have challenged scientists around the world to find out why they form and vary. Because they scatter solar light, they shimmer at altitudes far above the typical cloud (~51 miles) which makes them… Read more »