steel track. âAs opposed to our big scope. This whole structure can rotate up to forty degrees a minute, versus one-fourth degree per minute needed to keep pace with Earthâs rotation. The dish can tip up and down at as much as twenty degrees per minute. That instrument turret at the end of the arm holds up to eight independent instrument modules, eachââ
âBack up,â Marcus said. âThose tipping and turning rates. Youâre telling me that the GBT can track planets, asteroids, even close-orbiting satellites. Stars and galaxies only move with the Earthâs rotation.â She must have looked surprised because he added, âRemember who I work for?â
âRight. And sorry.â
âExcept asteroids and most planets donât emit radio waves. In the middle of the quiet zone, where my cell phone has no service and NRAO wonât even permit digital cameras up close, I canât believe the observatory is pumping out radar pulses so you can read the echoes.â
He was quick, which was promising, and he seemed engaged in what sheâd had to show him. But around the eyes she saw a touch of ⦠something. Suspicion? Was she that transparent, or was it something else?
âYouâre correct,â she said. âArecibo transmits and Green Bank reads the faint echoes. We could transmit ourselvesââshe pointed up at the instrumentation armââby replacing one of the receiver modules with a transmitter, but that would hardly be radio quiet. My work involves radar mapping of Titan, and we partner with Arecibo to do it.â
âTitan? Just how sensitive is this scope?â
âIf there were a cell phone on Titan, with the GBTââand lots of post-processingââI could listen to the call.â Barring other complications, and that topic was coming. âWe need to move along, Marcus. The weekly science lunch is not to be missed.â
Especially because you are on deck.
*Â Â Â *Â Â Â *
Patrick Burkhalter toted his cafeteria tray to the residence hallâs second floor, where he found the social lounge half filled. Many of his colleagues were already seated and eating. Others surrounded Valerie Clayburn and her guest, meal trays in hand, intercepted before they could find a table. With maybe eight thousand people in the entire county, everyone welcomed new faces. But visitors and outsiders comprised very different categories, and after eight years here Patrick remained an outsider.
âHey,â he offered as he took an empty seat. Tamara Miller glanced his way, nodded, and went back to her conversation with Liam Harris. Something about intergalactic dust.
Patrick went to work on his country-fried steak, mashed potatoes, and gravy. His choices would do nothing for his waistline or his cholesterol, but who did he have to impress?
Or to live for? That was a thought depressing enough to make him set down his fork.
Their guest got perhaps two minutes with his lunch before Valerie began tapping her water glass with a butter knife. âHi, everyone. We have a visitor, as you may have noticed.â
Not to mention that she had put out the word to make sure the tech staff all came today. Would she get the outcome for which she so obviously schemed? In Patrickâs experience, manipulating scientists and engineers worked about as well as herding cats.
âHello,â the chorus rang out raggedly, from around the collection of short, narrow tables arrayed in a U.
Valerie said, âOur visitor, Marcus Judson, works at NASA Goddard on the demonstration powersat project. Iâm hoping heâll tell us about it.â
Patrick refocused on his lunch while others murmured their encouragement.
Judson kept his response short, and Patrick approved. You didnât know you were todayâs featured attraction, did you?
âSo what do you think, folks?â Valerie prompted. âHow will powersats
Christine Warner
Abby Green
Amber Page
Melissa Nathan
Cynthia Luhrs
Vaughn Heppner
Belinda Murrell
Sheila Connolly
Agatha Christie
Jennie Jones