That band, Dr. Kogut explained, falls between shorter wavelengths studied by satellites like NASA's Cosmic Background Explorer and longer ones accessible to ground-based radio telescopes.
While sources in the audio-frequency regime above 1 Hz are accessible to ground-based detectors, sources in the low-frequency regime can only be observed from space because of the unshieldable background of Newtonian gravitational noise.
Only a small fraction of astronomical objects are accessible to high-resolution ground-based imaging; in contrast Hubble can perform high-resolution observations of any part of the night sky, and on objects that are extremely faint.
Our work is on the ground, accessible to the community at large each day.
As a medium of sculpture, Jack Lanternsrns are at once campy and captivating, ephemeral and iconic, accessible to all, yet fertile ground for the truly creative.
What the authorities could do, he said, is make the grounds more accessible to the public – just as they did in the 1970s when they got the club to throw open the grounds on nonrace days to walkers and joggers.
The feeding grounds are accessible to the walruses from ice break-up at the end of July until the formation of new fast-ice in October [ 9, 10].
Although Panther Central, the Towers Lobby which connects all three towers, and the dining services located on the ground floor are accessible to everyone, only residents are allowed in the individual towers and must present their student ID card to a 24-hour security guard to gain entrance.
Both are at ground level and fully accessible to wheelchairs.
In his final years at the Brookhaven in Lexington retirement community, Mr. Ames designed and oversaw the creation of a nature trail through the wooded grounds there that was accessible to elderly people with limited mobility.
