Earth has earthquakes, Venus has venusquakes. Researchers at the University of Alaska Fairbanks Geophysical Institute, working with NASA, are helping create a Venusian seismometer that can operate long enough in that planet’s extremes to provide insight into its seismicity. It’s a major challenge. Venus has surface temperatures of 900 degrees Fahrenheit, hot enough to melt […]
NASA’s retired Earth Radiation Budget Satellite (ERBS) reentered Earth’s atmosphere at 11:04 p.m. EST on Sunday, Jan. 8, after almost four decades in space. For 21 of its years in orbit, the ERBS actively investigated how the Earth absorbed and radiated energy from the Sun, and made measurements of stratospheric ozone, water vapor, nitrogen dioxide, […]
In early January NASA’s retired Earth Radiation Budget Satellite (ERBS) is expected to reenter Earth’s atmosphere after almost four decades in space. For 21 of those years, the ERBS actively investigated how the Earth absorbed and radiated energy from the Sun, and made measurements of stratospheric ozone, water vapor, nitrogen dioxide, and aerosols. As of […]
A powerful transmitter in remote Alaska sent long wavelength radio signals into space Tuesday with the purpose of bouncing them off an asteroid to learn about its interior. The asteroid, 2010 XC15, is estimated to be about 500 feet across and is passing by Earth at two lunar distances, which is twice the distance between […]